An empty bucket being filled with paint at a constant rate takes 6 min to be filled to 7/10 of its capacity. How much more time will it take to fill the bucket to full capacity?

In distributing milk at a summer camp it is found that a quart of milk will fill either 3 large glass tumblers...

A bank offers 5% inerest compounded half yearly. A customer deposits Tk. 1600 each on 1 st January and 1st Jul...

A rectangular fish tank 25m by 9m has water in it to a level of 2m. This water is carefully poured into a cyli...

At a symposium, 20% of the professors are psychologists , 60% are biologists and the remaining 12 professors a...

In a department , 3/5 of the workers are men and the rest are women. If 1/2 of the men and 3/7 of the women in...

The ratio of investments of two partners P and Q is 7 : 5 and the ratio of their profits is 7 : 10. If P inves...