Rachel bought some eggs to bake cakes for a party. If she used 6 eggs for each cake, she would be short of 12 more eggs to bake all cakes. If she used 9 eggs for each cake, she would be short of 54 more eggs.
- How many cakes did she bake?
- How many eggs did Rachel buy?
(a)
Small difference
= 9 - 6
= 3
Big difference
= 54 - 12
= 42
Number of cakes that Rachel bought
= 42 ÷ 3
= 14
(b)
Number of eggs that Rachel bought
= 14 x 6 - 12
= 84 - 12
= 72
Answer(s): (a) 14; (b) 72