If (x2 -y2) =48 and (x -y) =4 , what is the average of x and y?

The average score of students on a certain exam was 85.50. On the same exam Raju scored 90. What was Raju's pe...

One baker can bake either 2 large cakes or 35 small cakes per hour. How many bakers are needed to bake 20 larg...

If n is even, which of the following cannot be odd?

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...

Two people start jogging at the same point and time but in opposite directions. If the rate of one jogger is 2...

A worker is hired for 7 days. Each day, he is paid 10 Taka more than what he is paid for the previous day of w...