The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member?

The product of two numbers x and y is twice the sum of the numbers. What is the sum of the reciprocals of x an...

In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the run rate in the remaini...

In order to obtain an income of Tk. 650 from 10% stock at Tk. 96, one must make an investment of :

Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minute...

Train can travel 50% faster than a car. Both start from point A at the same time and reach point B 75 kms away...

Running at the same constant rate, 6 identical machines can produce a totoal of 270 bottles per minute. At thi...