what is the H. C.F of the numbers 36 , 54 and 90?

The area of circle A is 6.25 sq. in. If radius of the circle is doubled, what is the new area of circle A in s...

If 10 % of x is equal to 25% of y, and y =16 what is the value of x?

Every 3 minutes , 4 liters of water are poured into a 2,000 litre tank . After 2 hours, what percent of the ta...

A shopkeeper buys a box of candles for Tk. 18.00 If he wants to make a profit of 45% , how much should he rese...

The charge of a room at Sheraton is 25% less than that of a room at Westin and 10% less than that of a room at...

Due to the recession, a show room reported that revenue from luxury car sales were down by 11% and revenue fro...