# A river 1.5 m deep and 36 m wide is flowing at the rate of 3.5 km per hour. The amount of water that runs into the sea per minute(in cubic metres) is

1.  3150

2.  31500

3.  6300

4.  63000

4

3150

Explanation :
No Explanation available for this question

# Four persons are chosen at random from the group of 3men .2 women and 4 children .The chance that exactly 2 of them are children is

1.  1/9

2.  1/5

3.  1/12

4.  10 /21

4

10 /21

Explanation :
No Explanation available for this question

# Simple interest on acertain amount is 9/16 of the principal. If the numbers representing the rate of interest in percent and time in years be equal, then time, for which the principal is lent out, is

1.  5(1/2) years

2.  6(1/2) years

3.  7 years

4.  7(1/2) years

4

7(1/2) years

Explanation :
No Explanation available for this question

# A lends Rs. 2500 to B and a certain sum to C at the same time at 7%.p.a. simple interest. If after 4 years, A altogether receives Rs. 1120 as interest from B and C, then the sum lent to C is

1.  Rs. 700

2.  Rs. 1500

3.  Rs. 4000

4.  Rs. 6500

4

Rs. 1500

Explanation :
No Explanation available for this question

# A box contains 20 electric bulbs  out of them  4 are defective ,Two bulbs are chosen at random from the box ,The probability that at least one of these are defective ,is

1.  4/19

2.  7 /19

3.  12/19

4.  21/95

4

7 /19

Explanation :
No Explanation available for this question

# Two equal sums of money were lent at simple interest at 11% p.a. for 3(1/2) years and 4(1/2) years respectively. If the difference in interests for two periods was Rs.412.50, then each sum is

1.  Rs. 3250

2.  Rs. 3500

3.   Rs. 3750

4.  Rs. 4250

4

Rs. 3750

Explanation :
No Explanation available for this question

# A rectangle water tank is 80 m x 40 m. water flows it through a pipe 40 sq. cm at the opening at a speed of 10 km/hr. by how much, the water level will rise in the tank in half an hour

1.  3/2 cm

2.  4/9 cm

3.  5/8 cm

4.  None of these

4

5/8 cm

Explanation :
No Explanation available for this question

# In a class, 30% percentage of the students offered English, 20% offered Hindi and 10% offered both. if a student is selected at random ,What is the probability that he has offered  English or Hindi

1.  2/5

2.  3/4

3.  3/5

4.  3/10

4

2/5

Explanation :
No Explanation available for this question

# If the simple intersest on a certain sum for 15 months at 7(1/2)% per annum exceeds the simple interest on the same sum for 8 months at 12(1/2)% per annum by Rs. 32.50, then the sum (in Rs.) is

1.  Rs. 3000

2.   Rs. 3060

3.   Rs. 3120

4.   Rs. 3250

4

Rs. 3120

Explanation :
No Explanation available for this question

1.  1/6

2.  5/12

3.  1/2

4.  7/9

4