In a row of boys, Punit’s position from the left end is 33rd and Ankit’s position from the right end is 25th. After interchanging their position, Punit’s positionbecomes 45th from the left end. How many boys are there in the row?
There are five friends I, J, K, L and M. K's income is more than L's income but lesser than M's income. J's income is the least. I's income is lesser than K's income. Whose income is the maximum?
The weights of 4 boxes are 70, 50, 30 and 90 kilograms. Which of the following cannot be the total weight,in kilograms, of any combination of these boxes and in a combination a box can be used only once?