Gem bought some eggs to bake cakes for a party. If she used 5 eggs for each cake, she would be short of 9 more eggs to bake all cakes. If she used 7 eggs for each cake, she would be short of 43 more eggs.
- How many cakes did she bake?
- How many eggs did Gem buy?
(a)
Small difference
= 7 - 5
= 2
Big difference
= 43 - 9
= 34
Number of cakes that Gem bought
= 34 ÷ 2
= 17
(b)
Number of eggs that Gem bought
= 17 x 5 - 9
= 85 - 9
= 76
Answer(s): (a) 17; (b) 76