If the cost of the book worth 50 is increased by 25, the rate of increase is
25%
20%
50%
10%
The difference in simple interest and compound interest on a certain sum of money in 2 years at 15% p.a is 144. The sum is
6,000
6,200
6,300
6,400
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
If A's salary is 50% more than B's then by what % B's salary is less than A's salary ?
33
30
At what rate of interest per annum will a sum double itself in 8 years, if calculated as per Simple Interest formula.
None of these
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
20
Asha can stitch 'x' shirts in minutes. At this rate, how many shirts can she stitch in of an hour ?
50 x
60 x
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
Two pipes A and B can fill a tank in 15 hours and 20 hours respectively while a third pipe C can empty the full tank in 25 hours. All the three pipes are opened in the beginning. After 10 hours, C is closed. In how much time, will the tank be full ?
12 hrs
13 hrs
16 hrs
18 hrs
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
