Question

Gerard and Martin were both given a pay rise. Gerard was given a 25% pay rise and Martin was given a 5% pay rise. The ratio of Gerard’s salary to Martin’s salary is now 12:7. Martin is now paid £21000.

Work out Gerard’s pay before the pay rise

Answer 1

£28,000

Explanation:

Martin’s salary is 7/12 of Gerard’s salary. So, you have to multiply by the reciprocal, which is 12/7.

`(12)/(7)`×21,000 = 12×3000=36,000

Since Gerard salary was multiplied by 5/4, multiply by 4/5.

`(4)/(5)`×36,000 = 4×7200=28,000