If c and d are two integers and @ is defined in p an q as @ (p, q)=(p+1)(q+2), and @ (c, d) equals the product of 2 and 5, then what should be the value of c+d?

The probability of rolling any number of an wighted 6-sided die, with faces numbered 1 through 6, is directly...

In dividing a number by 585, a student employed the method of short division. He divided the number successive...

Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km re...

In the formula e = hf . if e is doubled and f is halved , what happens to the value of h?

what is the maximum number of 3 *3 squares that can be formed from the squares in the 6* 6 checker board to th...

A train went 300 miles from City X to city Y at an average rate of 80 mph. At what speed did it travel on teh...