Answer:
7x + 5x = £3,360
12x = £3,360
x = £280
Maya's bonus payment this year:
7(£280) = £1,960
Maya's bonus payment last year:
£1,960 = 1.96a, so a = £1,000
Ishann's bonus payment this year:
5(£280) = £1,400
Ishann's bonus payment last year:
£1,400 = (7/6)b, so b = £1,200
Maya:Ishaan last year:
£1,000:£1,200 = 5:6