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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
$2 x + y = 5$ ........... $(i)$
$3 x + 2 y = 8$ ........... $(i)$
Multiply equation $(i)$ by $2$ , we get
$2 x \times 2 + y \times 2 = 5 \times 2$
$\Rightarrow 4 x + 2 y = 10$ ......... $(i i i)$
$(4 x + 2 y) - (3 x + 2 y) = 10 - 8$ .......... [Subtracting $(i)$ and $(i i i)$ ]
$\Rightarrow 4 x + 2 y - 3 x - 2 y = 10 - 8$
$\Rightarrow x = 2$
$2 \times 2 + y = 5$ ......... From $(i)$
$\Rightarrow 4 + y = 5$
$y = 5 - 4 = 1$

Hence y=1

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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: $sigma$ The load used in each trip is 1000 kg and has friction coefficient $mu k$ = 0.1 and $mu s$ = 0.2. $sigma$ Mass of camel is 500 kg. $sigma$ 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. $sigma$ From biological data, the rate of consumption of energy of camel can be expressed as $P equals 18 cross times 10 to the power of 3 end exponent v plus 10 to the power of 4 end exponent J divided by s$ 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: $sigma$ The load used in each trip is 1000 kg and has friction coefficient $mu k$ = 0.1 and $mu s$ = 0.2. $sigma$ Mass of camel is 500 kg. $sigma$ 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. $sigma$ From biological data, the rate of consumption of energy of camel can be expressed as $P equals 18 cross times 10 to the power of 3 end exponent v plus 10 to the power of 4 end exponent J divided by s$ 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–

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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: $sigma$ The load used in each trip is 1000 kg and has friction coefficient $mu k$ = 0.1 and $mu s$ = 0.2. $sigma$ Mass of camel is 500 kg. $sigma$ Load is accelerated for first 50 m with constant acceleration, then it is pulled at a constant speed of 5 $m divided by s$ for 2 km and at last stopped with constant retardation in 50 m. $sigma$ From biological data, the rate of consumption of energy of camel can be expressed as $P equals 18 cross times 10 to the power of 3 end exponent v plus 10 to the power of 4 end exponent J divided by s$ 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–

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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.

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