Question

eric and sue buy some gifts for a friend. eric pays £3.50. they pay in the ratio 5:3 how much does sue pay?

Answer 1

£1.31

Explanation:

Add 5 to 3, obtaining 8. Then the amt tht Eric pays is 5/8 of the £3.50 total, and the amt tht Sue pays is 3/8 of the total.

Thus, mult. £3.50 by 3/8:

(3/8)(£3.50) = £1.31 (which has been rounded off from £1.3125).