# The length of a cube is twice in length of another cube. The ratio of the volumes of the first and second cube is

1.  1 : 1

2.  2 : 1

3.  4 : 1

4.  8 : 1

4

8 : 1

Explanation :
No Explanation available for this question

1.  1 : 4

2.  1 : 3

3.  1 : 2

4.  1 : 1

4

1 : 2

Explanation :
No Explanation available for this question

# Water is drawn out of a full tank The shape of the tank is cuboioe length 3m, breadth 1.4m a depth 80cm. If the rate of was following out is 100cm3/sec, the water level (in cms) in the tank after 5 minutes is

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

1.  1.85 m

2.  1.80 m

3.  1.75 m

4.  1.70 m

4

1.75 m

Explanation :
No Explanation available for this question

1.  20050

2.  21050

3.  22000

4.  22050

4

22050

Explanation :
No Explanation available for this question

# x2 + y2 = 5 and xy = 1 then x4 – 2x2y2 + y4 =

1.  21

2.  19

3.  24

4.  25

4

21

Explanation :
No Explanation available for this question

# A batsman has played 11 innings. If in the 12th innings, he makes 90 runs and thereby his average decreases by 5, then his average after 12th innings, is

1.  40

2.  35

3.  42

4.  47

4

35

Explanation :
No Explanation available for this question

# While calculating average of five numbers, a student wrote one number as 54 instead of 45 by mistake. As a result, he got the average as 52. The correct aver­age of the number is

1.  50.4

2.  50.2

3.  50.1

4.  50.0

4

50.2

Explanation :
No Explanation available for this question

1.  3

2.  5

3.  7

4.  9

4

3

Explanation :
No Explanation available for this question

1.

2.

3.

4.

4