A man rows to a place 48 km distant and back in 14 hours. He find that he can row 4 km with the stream in the same time as 3 km against the stream. Find the rate of stream.
1 km/h
1.5 km/h
2 km/h
None of these
In a cricket coaching camp, 1200 children are trained out of which 900 are selected for various matches. Ratio of non-selected children to the total number of children is
300 : 120
4 : 1
1 : 4
120 : 300
The average age of A and B is 20 years. If C were to replace A, the average would be 19 and if C were to replace B, the average would be 21. What are the age of A, B and C ?
22, 18, 20
20, 20, 18
18, 22, 20
A tank is filled in 5 hours by three pipes A, B, and C. The pipe C is twice as fast as B and B is twice as fast as A. How much time will pipe A alone take to fill the tank ?
20 hrs
25 hrs
35 hrs
Cannot be determined
The average age of a group of person going for picnic is 16 years. Twenty new persons with an average age of 15 years join the group on the spot due to which their average becomes 15.5 years. Find the number of persons initially going for picnic.
20
18
22
Two bicyclists do the same journey by travelling respectively at the rate of 9 km an hour. The distance travelled when one taken 32 minutes longer than the other is
42 km
44 km
48 km
50 km
If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days, the time taken by 15 men and 20 boys in doing the same type of work will be :
4 days
5 days
6 days
7 days
In a quiz program the ratio of correct answers to incorrect answers is 5 : 2. If 16 incorrect answers are given then the number of correct answers given is
80
40
30
A cistern can be filled separately by two pipes in 12 and 16 minutes separately. If both fill pipes are opened together, when will the cistern be filled ?
Bhanu borrowed a certain sum of money at 12% per annum for 3 years and Madhuri borrowed the same sum at 24% per annum for 10 years. The ratio of their amounts is
1 : 3
2 : 1
2 : 3
2 : 5
