Respuesta :
50% of cakes = party cakes.
Remainder = 100% - 50% = 50%
1/5 of Remainder = 1/5 * 50% = 10% = Sponge cakes.
Percentage of sponge cakes = 10%
Remainder = 100% - 50% = 50%
1/5 of Remainder = 1/5 * 50% = 10% = Sponge cakes.
Percentage of sponge cakes = 10%