From N35:05; take away N30:39

What is 40% of N5:00

Section B: Show all Workings

Express 37½% as a fraction in its lowest term

Express 2818 in Roman numerals

Calculate the area of the shaded portion

What must be added to the sum of 2/5 and ¼ to give 2½

The average age of 5 boys is 12 years. If one of them is 10years old. What is the average age of the remaining boys?