Question

edy baked three cakes with different masses in the ratio of 7:5:4. The mass of the lightest cake is 800g. Find the mass,in g, of the heaviest cake 7:5:4​

Answer 1

let 4units represent 800g, since the ratio of the masses is 7:5:4, with 800g being the lightest.

1 unit = 800/4 = 200g
hence, the mass of the heaviest cake will be 7 units, which is 7 x 200g = 1400g