1. Find a number such that if you remove one fourth of it you get 18?

2. What per cent of 32 is 2?

Solution

1. Answer: 24

Solution: If n is such a number then n-(n/4) = 18 which gives 3n/4 = 18 from which n = 24.

2. Answer: 6.25%

Solution: If p% is the required per cent then 32p/100 = 2 and so we get p = 6.25 and so 6.25% of  32 is 2.