If f(x) = x2 - 2x what is the value of f(4) ?
-16
-8
0
8
How much money would a man have to invest at the rate of 5% per year, to have Tk. 1470 at the end of the year?
During a certain chess tournament, each of six players will play with every other player exactly once. Then, how many different matches will be played during the tournament?
If 77:28:: 55: x, find the value of x.
The length of a rectangle is increased by 20% and width is decreased by 10%. What is the change of area in percentage?
2b - (86 + 88) which value of b will be the closest to 0 for the question?