A rectangular fish tank 25m by 9m has water in it to a level of 2m. This water is carefully poured into a cylindrical container with a diameter of 10 m. How high will the water reach in the cylindrical container?

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...

A stock is currently at Tk. 40 per share. If the price increases by 20 percent and then decreases by 25 percen...

After dividing a postie integer, Y, by 3, the remainder is 2, but when Y is divided by 7, the remainder is 4 ....

In a graph there are two curves, =+10. will be greater than when__