If x : y = 2 : 3, and m : n= 9 : 4, find the ratio xn : ym.

The elevator in an eleven-storied office building travels at the rate of one floor per 1/4 minute, which allow...

Out of the 30,000 tickets for the cricket tournament in Dhaka, 1/4 were sold at Tk. 300, 1/3 were sold at Tk....

If x = 2y = 3z = 36 then the arithmetic mean of x, y, z is :

If y = (3x-6)/x, for what values of x, will be positive?

Half of the students of a school play football and one third of the rest play cricket. The remaining 300 stude...

The average weight for a group of 20 women is 130 pounds. If the average weight for 75% of these women was 140...