# If , then the value of is

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# If the length of a rectangle is increased by 10% and its breadth is decreased by 10%, then its area

1.  Decreases by 1%

2.  Increases by 1%

3.  Decreases by 2%

4.  Remains unchanged

4

Decreases by 1\%

Explanation :
No Explanation available for this question

# A pump can fill a tank with water in 2hours. Because of a leak in the tank it was taking hours to fill the tank. The leak can drain all the water off the tank in

1.  8 hours

2.  7 hours

3.  hours

4.  14 hours

4

14 hours

Explanation :
No Explanation available for this question

# Three spherical balls of radii 1 cm, 2 cm and 3cm are melted to form a single spherical ball. In the process, the loss of material is 25%. The radius of the new ball is

1.  6 cm

2.  5 cm

3.  3cm

4.  2 cm

4

3cm

Explanation :
No Explanation available for this question

# If A: B = 2: 3, B: C = 4: 5 and: D = 5: 9, then A: D is equal to

1.  11: 17

2.  8: 27

3.  5: 9

4.  2: 9

4

2: 9

Explanation :
No Explanation available for this question

# A can do a piece of work in 4 hours; B and C can do it in 3 hours. A and C can do it in 2 hours. How long will B alone take to do it

1.  10 hours

2.  12 hours

3.  8 hours

4.   24 hours

4

12 hours

Explanation :
No Explanation available for this question

# If the length of a rectangle is increased in the ratio 6: 7 and its breadth is diminished in the ratio 5: 4 then its area will be diminished in the ratio

1.  17: 16

2.  15: 14

3.  9: 8

4.  8: 7

4

15: 14

Explanation :
No Explanation available for this question

# A does of a piece of work in 20 days; He then calls in B and they finish the remaining work in 3 days. How long B alone will take to do whole work

1.   Days

2.  37 days

3.  40 days

4.  23 days

4

Days

Explanation :
No Explanation available for this question

# 7 years ago, the ages (in years) of A and B were in the ratio 4: 5; and 7 years hence they will be in the ratio 5: 6. The present age of B is

1.  56 years

2.  63 years

3.  70 years

4.  77 years

4

77 years

Explanation :
No Explanation available for this question

1.  50o

2.  70o

3.  60o

4.  80o

4