If a light flashes every 6 seconds, how many times will it flash in 3/4 of an hour ?

If 6 and X have the same mean as 2, 4 and 24, what is the value of X

The value of -4-(-10) is how much greater than the value of -10-(-4) ?

How much interest will TK. 1000 earn in one year at the annual interest rate of 20% if interest rate is compou...

If the length of rectangle is increased by 30% and the width is decreased by 30%, then the area will be --

Average mark in Math in a class of 40 students is 45. Average mark of all the 30 boys is 50. Then the average...

729ml of a mixture contains milk and water in ratio 7 : 2 . How much of the water is to be added to get a new...