Divide 50 into two parts so that the sum of their reciprocals is  

A man spends   of his income on food,    of his income house rent and   of his income on clothes. If he still has Rs. 400 left with him, his income is: 

Direction : What value should come in place question mark(?) in the following questions?

4 × 5² – 3² × 7 + 6²=?+24

In a two - digit number, the digit at the unit's place is 1 less than twice the digit at the ten's place. If the digits at units and ten's place are interchanged, the difference between the new and the original number is less than the original number by 20. The original number is: 

What is the smallest number of 5 digits which is exactly divisible by 12, 24, 48, 60 and 96?

The mean of 20 items is 55. If two items 45 and 30 are removed, what will be the new mean of the remaining items?

What will be come in place of question mark(?) in the following number series?
14, 8, 7 , 11.5, 22, ?

The product of two numbers is 24 times the difference of these two numbers. If the sum of these two numbers is 14. Find the larger number?