Intermediate November 2021 Unit 2 Q16

(a) A number, when increased by 4%, is equal to \(N\).
Which of the following calculations would give you the original number?
Circle your answer. [1]

\(N \times 1{\cdot}04\)     \(N \div 1{\cdot}04\)     \(N \times 1{\cdot}4\)     \(N \div 1{\cdot}4\)     \(N - 4\)

(b) The number shown on each diagram below is 20% greater than the number shown on the previous diagram.

Diagram not drawn to scale

Find the number that should be shown on Diagram 6. [2]