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At what time between 1 A.M and 2 A.M will both hands of a clock point in opposite directions ?

1 hour 38 $38 \frac{2}{11}$
1 hour 15 min
1 hour 83 $83 \frac{2}{11}$
none of these

The correct answer is: 1 hour 38 $38 fraction numerator 2 over denominator 11 end fraction$

To find time between 1 A.M and 2 A.M when both hands of a clock point in opposite directions.

The difference between the hands when they are in opposite direction is 30 min.
So the minute hand has to gain $(5 + 30)$ min. which it can do in $38 fraction numerator 2 over denominator 11 end fraction$ minutes.

The time is $38 fraction numerator 2 over denominator 11 end fraction$ minutes past $1$ o'clock when the both hands are in opposite direction.

Ramu can complete $fraction numerator 1 over denominator 4 end fraction$ of the work in 5 days and Ravi can complete $fraction numerator 1 over denominator 5 end fraction$ of the same work in 6 days How long would both of them take to complete that work, if they work together ?

Therefore, to complete the work, It takes 12 days if they work together.

Ramu can complete $fraction numerator 1 over denominator 4 end fraction$ of the work in 5 days and Ravi can complete $fraction numerator 1 over denominator 5 end fraction$ of the same work in 6 days How long would both of them take to complete that work, if they work together ?

Maths-General

Therefore, to complete the work, It takes 12 days if they work together.

General

Maths-

If A, B and C can finish a piece of work in 12 days, 15 days and 20 days respectively If all the three work at it together and they are paid Rs 960 for the whole work, how should the money be divided among them ?

Therefore, the money should be divided in the ratio of 5:4:3
i.e, A's share=400
B's share=320
C's share=240

If A, B and C can finish a piece of work in 12 days, 15 days and 20 days respectively If all the three work at it together and they are paid Rs 960 for the whole work, how should the money be divided among them ?

Maths-General

Therefore, the money should be divided in the ratio of 5:4:3
i.e, A's share=400
B's share=320
C's share=240

General

physics-

The upper range of the power of the eye lens in the above question no. 6 is

physics-General

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chemistry-

Which of the following is correct method for separating a mixture of following compounds?

chemistry-General

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chemistry-

Locate the image of the point object O in the situation shown in figure. The point C denotes the centre of curvature of the separating surface

physics-General

General

Maths-

An ellipse has the point $left parenthesis 1 comma blank minus 1 right parenthesis blank$ and $left parenthesis 2 comma blank minus 1 right parenthesis blank$ as its foci and $x plus y equals 5$ as one of its tangent then the coordinate of the point where this line touches the ellipse are

So, the point of contact of tangent to ellipse is $S o comma space t h e space p o i n t space o f space c o n t a c t space o f space tan g e n t space t o space e l l i p s e space i s space open parentheses 34 over 9 comma 11 over 9 close parentheses.$ .

An ellipse has the point $left parenthesis 1 comma blank minus 1 right parenthesis blank$ and $left parenthesis 2 comma blank minus 1 right parenthesis blank$ as its foci and $x plus y equals 5$ as one of its tangent then the coordinate of the point where this line touches the ellipse are

Maths-General

General

maths-

The arrangement of the ellipses in ascending order of their eccentricities when $open floor S B S to the power of 1 end exponent close$ is given, Where S & $S to the power of 1 end exponent$ are foci& $B$ is one end of the minor axis A) $open floor S B S to the power of 1 end exponent close equals 2 0 to the power of 0 end exponent$ B) $open floor S B S to the power of 1 end exponent close equals 6 0 to the power of 0 end exponent$ C) $open floor S B S to the power of 1 end exponent close equals 3 0 to the power of 0 end exponent$ D) $open floor S B S to the power of 1 end exponent close equals 9 0 to the power of 0 end exponent$

maths-General

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$T h e p$ oints o $n t h e e$ llipse 3 $x to the power of 2 end exponent plus y to the power of 2 end exponent equals 37 comma$ where the normals to it are perpendicular to $6 x plus 5 y minus 2 equals 0$ are

maths-General

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At what time between 1 A.M and 2 A.M will both hands of a clock point in opposite directions ?

1 hour 38 1 hour 15 min 1 hour 83 none of these

The correct answer is: 1 hour 38

To find time between 1 A.M and 2 A.M when both hands of a clock point in opposite directions.The difference between the hands when they are in opposite direction is 30 min.So the minute hand has to gain (5+30) min. which it can do in minutes.

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Ramu can complete of the work in 5 days and Ravi can complete of the same work in 6 days How long would both of them take to complete that work, if they work together ?

If A, B and C can finish a piece of work in 12 days, 15 days and 20 days respectively If all the three work at it together and they are paid Rs 960 for the whole work, how should the money be divided among them ?

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1 hour 38 $38 \frac{2}{11}$
1 hour 15 min
1 hour 83 $83 \frac{2}{11}$
none of these

The correct answer is: 1 hour 38 $38 fraction numerator 2 over denominator 11 end fraction$

Ramu can complete $fraction numerator 1 over denominator 4 end fraction$ of the work in 5 days and Ravi can complete $fraction numerator 1 over denominator 5 end fraction$ of the same work in 6 days How long would both of them take to complete that work, if they work together ?

Ramu can complete $fraction numerator 1 over denominator 4 end fraction$ of the work in 5 days and Ravi can complete $fraction numerator 1 over denominator 5 end fraction$ of the same work in 6 days How long would both of them take to complete that work, if they work together ?

An ellipse has the point $left parenthesis 1 comma blank minus 1 right parenthesis blank$ and $left parenthesis 2 comma blank minus 1 right parenthesis blank$ as its foci and $x plus y equals 5$ as one of its tangent then the coordinate of the point where this line touches the ellipse are

An ellipse has the point $left parenthesis 1 comma blank minus 1 right parenthesis blank$ and $left parenthesis 2 comma blank minus 1 right parenthesis blank$ as its foci and $x plus y equals 5$ as one of its tangent then the coordinate of the point where this line touches the ellipse are

$T h e p$ oints o $n t h e e$ llipse 3 $x to the power of 2 end exponent plus y to the power of 2 end exponent equals 37 comma$ where the normals to it are perpendicular to $6 x plus 5 y minus 2 equals 0$ are

$T h e p$ oints o $n t h e e$ llipse 3 $x to the power of 2 end exponent plus y to the power of 2 end exponent equals 37 comma$ where the normals to it are perpendicular to $6 x plus 5 y minus 2 equals 0$ are