Julie bought some eggs to bake cakes for a party. If she used 7 eggs for each cake, she would be short of 16 more eggs to bake all cakes. If she used 9 eggs for each cake, she would be short of 66 more eggs.
- How many cakes did she bake?
- How many eggs did Julie buy?
(a)
Small difference
= 9 - 7
= 2
Big difference
= 66 - 16
= 50
Number of cakes that Julie bought
= 50 ÷ 2
= 25
(b)
Number of eggs that Julie bought
= 25 x 7 - 16
= 175 - 16
= 159
Answer(s): (a) 25; (b) 159