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
8% of is equal to
50
75
80
100
A person has to cover a distance of 6 km in 45 minutes. If he covers one-half of the distance in two-thirds of the total time; to cover the remaining distance in the remaining time, his speed (in km/h) must be :
6
8
12
15
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
40
20
30
Asha can stitch 'x' shirts in minutes. At this rate, how many shirts can she stitch in of an hour ?
50 x
60 x
If the cost of the book worth 50 is increased by 25, the rate of increase is
25%
20%
50%
10%
A cycle is sold for 880 at a loss of 20%. For how much should it be sold to gain 10% ?
1400
1210
1100
1000
A shopkeeper sold two watches for 425 each, gaining 10% on one and losing 10% on the other. Then he
neither gains nor loss
gains 1%
loses 1%
None of these
Marked price of an article is 20% above the CP. He allows his customers a discount and makes a profit of 8%. The rate of discount is
10 %
12 %
20 %
18 %
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
