Risa bought some eggs to bake cakes for a party. If she used 8 eggs for each cake, she would be short of 9 more eggs to bake all cakes. If she used 12 eggs for each cake, she would be short of 65 more eggs.
- How many cakes did she bake?
- How many eggs did Risa buy?
(a)
Small difference
= 12 - 8
= 4
Big difference
= 65 - 9
= 56
Number of cakes that Risa bought
= 56 ÷ 4
= 14
(b)
Number of eggs that Risa bought
= 14 x 8 - 9
= 112 - 9
= 103
Answer(s): (a) 14; (b) 103