A headmaster contributes 7% of his income into a fund and his wife contributes 4% of her income. If the husband earns N5,500 per annum (p.a) and the wife earns N4,000 (P.a), find the sum of their annual contribution to the fund

A. N1045
B. N605
C. N545
D. N490
E. N440

Correct Answer: Option C

C. N545

Husband contributions = 7100 x N5,500 = N385

Wife contribution = 4100 x N4,000 = N160

Sum of their Annual contribution = N385 + N160 = N545