Maths-

General

Easy

Question

# The diagram shows the mass of some parcels on weighing machine.

Find the value of y.

- 1
- 2
- 3
- 11

## The correct answer is: 1

### We should find value of y by writing two equation in terms of x and y

As per given figure

$2x+y=5$ ........... $(i)$

$3x+2y=8$ ........... $(i)$

Multiply equation $(i)$ by 2, we get

$2x×2+y×2=5×2$

$⇒4x+2y=10$ ......... $(iii)$

$(4x+2y)−(3x+2y)=10−8$ .......... [Subtracting $(i)$ and $(iii)$]

$⇒4x+2y−3x−2y=10−8$

$⇒x=2$

$2×2+y=5$ ......... From $(i)$

$⇒4+y=5$

$y=5−4=1$

$2x+y=5$ ........... $(i)$

$3x+2y=8$ ........... $(i)$

Multiply equation $(i)$ by 2, we get

$⇒4x+2y=10$ ......... $(iii)$

$(4x+2y)−(3x+2y)=10−8$ .......... [Subtracting $(i)$ and $(iii)$]

$⇒4x+2y−3x−2y=10−8$

$⇒x=2$

$2×2+y=5$ ......... From $(i)$

$⇒4+y=5$

$y=5−4=1$

Hence y=1

### Related Questions to study

chemistry-

Esterification of alcohols involves:

Esterification of alcohols involves:

chemistry-General

physics-

### In the following graph, distance travelled by the body in meters is

### In the following graph, distance travelled by the body in meters is

physics-General

physics-

### The graph shown in the figure represents

### The graph shown in the figure represents

physics-General

physics-

### Ram and Shyam are two fast friends since childhood. Shyam neglected studies and now has no means to earn money other than a camel whereas Ram becomes an engineer. Now both are working in the same factory. Shyam uses camel to transport the load within the factory.

Due to low salary & degradation in health of camel, Shyam becomes worried and meet his friend Ram and discusses his problem. Ram collected some data & with some assumptions concluded the following: The load used in each trip is 1000 kg and has friction coefficient = 0.1 and = 0.2. Mass of camel is 500 kg. Load is accelerated for first 50 m with constant acceleration, then it is pulled at a constant speed of 5m/s for 2 km and at last stopped with constant retardation in 50 m. From biological data, the rate of consumption of energy of camel can be expressed as where P is the power and v is the velocity of the camel. After calculations on different issues Ram suggested proper food, speed of camel etc. to his friend. For the welfare of Shyam, Ram wrote a letter to the management to increase his salary. Maximum power transmitted by the camel to load is–

### Ram and Shyam are two fast friends since childhood. Shyam neglected studies and now has no means to earn money other than a camel whereas Ram becomes an engineer. Now both are working in the same factory. Shyam uses camel to transport the load within the factory.

Due to low salary & degradation in health of camel, Shyam becomes worried and meet his friend Ram and discusses his problem. Ram collected some data & with some assumptions concluded the following: The load used in each trip is 1000 kg and has friction coefficient = 0.1 and = 0.2. Mass of camel is 500 kg. Load is accelerated for first 50 m with constant acceleration, then it is pulled at a constant speed of 5m/s for 2 km and at last stopped with constant retardation in 50 m. From biological data, the rate of consumption of energy of camel can be expressed as where P is the power and v is the velocity of the camel. After calculations on different issues Ram suggested proper food, speed of camel etc. to his friend. For the welfare of Shyam, Ram wrote a letter to the management to increase his salary. Maximum power transmitted by the camel to load is–

physics-General

physics-

### Ram and Shyam are two fast friends since childhood. Shyam neglected studies and now has no means to earn money other than a camel whereas Ram becomes an engineer. Now both are working in the same factory. Shyam uses camel to transport the load within the factory.

Due to low salary & degradation in health of camel, Shyam becomes worried and meet his friend Ram and discusses his problem. Ram collected some data & with some assumptions concluded the following: The load used in each trip is 1000 kg and has friction coefficient = 0.1 and = 0.2. Mass of camel is 500 kg. Load is accelerated for first 50 m with constant acceleration, then it is pulled at a constant speed of 5 for 2 km and at last stopped with constant retardation in 50 m. From biological data, the rate of consumption of energy of camel can be expressed as where P is the power and v is the velocity of the camel. After calculations on different issues Ram suggested proper food, speed of camel etc. to his friend. For the welfare of Shyam, Ram wrote a letter to the management to increase his salary. The ratio of magnitude of work done by camel on the load during accelerated motion to retarded motion is–

### Ram and Shyam are two fast friends since childhood. Shyam neglected studies and now has no means to earn money other than a camel whereas Ram becomes an engineer. Now both are working in the same factory. Shyam uses camel to transport the load within the factory.

Due to low salary & degradation in health of camel, Shyam becomes worried and meet his friend Ram and discusses his problem. Ram collected some data & with some assumptions concluded the following: The load used in each trip is 1000 kg and has friction coefficient = 0.1 and = 0.2. Mass of camel is 500 kg. Load is accelerated for first 50 m with constant acceleration, then it is pulled at a constant speed of 5 for 2 km and at last stopped with constant retardation in 50 m. From biological data, the rate of consumption of energy of camel can be expressed as where P is the power and v is the velocity of the camel. After calculations on different issues Ram suggested proper food, speed of camel etc. to his friend. For the welfare of Shyam, Ram wrote a letter to the management to increase his salary. The ratio of magnitude of work done by camel on the load during accelerated motion to retarded motion is–

physics-General

physics-

### Ram and Shyam are two fast friends since childhood. Shyam neglected studies and now has no means to earn money other than a camel whereas Ram becomes an engineer. Now both are working in the same factory. Shyam uses camel to transport the load within the factory.

Due to low salary & degradation in health of camel, Shyam becomes worried and meet his friend Ram and discusses his problem. Ram collected some data & with some assumptions concluded the following: The load used in each trip is 1000 kg and has friction coefficient = 0.1 and = 0.2. Mass of camel is 500 kg. Load is accelerated for first 50 m with constant acceleration, then it is pulled at a constant speed of 5 for 2 km and at last stopped with constant retardation in 50 m From biological data, the rate of consumption of energy of camel can be expressed as where P is the power and v is the velocity of the camel. After calculations on different issues Ram suggested proper food, speed of camel etc. to his friend. For the welfare of Shyam, Ram wrote a letter to the management to increase his salary.

Sign of work done by the camel on the load during parts of motion: accelerated motion, uniform motion and retarted motion respectively are:

### Ram and Shyam are two fast friends since childhood. Shyam neglected studies and now has no means to earn money other than a camel whereas Ram becomes an engineer. Now both are working in the same factory. Shyam uses camel to transport the load within the factory.

Due to low salary & degradation in health of camel, Shyam becomes worried and meet his friend Ram and discusses his problem. Ram collected some data & with some assumptions concluded the following: The load used in each trip is 1000 kg and has friction coefficient = 0.1 and = 0.2. Mass of camel is 500 kg. Load is accelerated for first 50 m with constant acceleration, then it is pulled at a constant speed of 5 for 2 km and at last stopped with constant retardation in 50 m From biological data, the rate of consumption of energy of camel can be expressed as where P is the power and v is the velocity of the camel. After calculations on different issues Ram suggested proper food, speed of camel etc. to his friend. For the welfare of Shyam, Ram wrote a letter to the management to increase his salary.

Sign of work done by the camel on the load during parts of motion: accelerated motion, uniform motion and retarted motion respectively are:

physics-General

physics-

### A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers According to observer B, the potential energy of the spring increases

A) Standing on the horizontal surface

B) Standing on the block

### A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers According to observer B, the potential energy of the spring increases

A) Standing on the horizontal surface

B) Standing on the block

physics-General

physics-

### A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers To an observer B, when the block is compressing the spring

A) Standing on the horizontal surface

B) Standing on the block

### A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers To an observer B, when the block is compressing the spring

A) Standing on the horizontal surface

B) Standing on the block

physics-General

physics-

### A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers According to the observer A

A) Standing on the horizontal surface

B) Standing on the block

### A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers According to the observer A

A) Standing on the horizontal surface

B) Standing on the block

physics-General

physics-

### A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers To an observing A, the net work done on the block is

A) Standing on the horizontal surface

B) Standing on the block

### A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers To an observing A, the net work done on the block is

A) Standing on the horizontal surface

B) Standing on the block

physics-General

physics-

### A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers To an observer A, the work done by the normal reaction N between the block and the spring on the block is

A) Standing on the horizontal surface

B) Standing on the block

### A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers To an observer A, the work done by the normal reaction N between the block and the spring on the block is

A) Standing on the horizontal surface

B) Standing on the block

physics-General

physics-

### A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers To an observer A, the work done by spring force is

A: Standing on the horizontal surface

B: Standing on the block

### A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers To an observer A, the work done by spring force is

A: Standing on the horizontal surface

B: Standing on the block

physics-General

physics-

### A ball is released from point A as shown in figure. The ball leaves the track at B. All surfaces are smooth. Let h be the maximum height from ground reached by ball after leaving track at B. Then If track makes an angle with horizontal at B then maximum height attained by ball will be :

### A ball is released from point A as shown in figure. The ball leaves the track at B. All surfaces are smooth. Let h be the maximum height from ground reached by ball after leaving track at B. Then If track makes an angle with horizontal at B then maximum height attained by ball will be :

physics-General

Maths-

### If the lines and represent three consecutive sides of a rectangle then ab

Hence ab=18

Choice 1 is correct

### If the lines and represent three consecutive sides of a rectangle then ab

Maths-General

Hence ab=18

Choice 1 is correct

chemistry-

### The product obtained in this reaction is

### The product obtained in this reaction is

chemistry-General