Irene bought some eggs to bake cakes for a party. If she used 8 eggs for each cake, she would be short of 19 more eggs to bake all cakes. If she used 13 eggs for each cake, she would be short of 74 more eggs.
- How many cakes did she bake?
- How many eggs did Irene buy?
(a)
Small difference
= 13 - 8
= 5
Big difference
= 74 - 19
= 55
Number of cakes that Irene bought
= 55 ÷ 5
= 11
(b)
Number of eggs that Irene bought
= 11 x 8 - 19
= 88 - 19
= 69
Answer(s): (a) 11; (b) 69