Min bought some eggs to bake cakes for a party. If she used 3 eggs for each cake, she would be short of 13 more eggs to bake all cakes. If she used 7 eggs for each cake, she would be short of 73 more eggs.
- How many cakes did she bake?
- How many eggs did Min buy?
(a)
Small difference
= 7 - 3
= 4
Big difference
= 73 - 13
= 60
Number of cakes that Min bought
= 60 ÷ 4
= 15
(b)
Number of eggs that Min bought
= 15 x 3 - 13
= 45 - 13
= 32
Answer(s): (a) 15; (b) 32