Barbara bought some eggs to bake cakes for a party. If she used 6 eggs for each cake, she would be short of 7 more eggs to bake all cakes. If she used 10 eggs for each cake, she would be short of 67 more eggs.
- How many cakes did she bake?
- How many eggs did Barbara buy?
(a)
Small difference
= 10 - 6
= 4
Big difference
= 67 - 7
= 60
Number of cakes that Barbara bought
= 60 ÷ 4
= 15
(b)
Number of eggs that Barbara bought
= 15 x 6 - 7
= 90 - 7
= 83
Answer(s): (a) 15; (b) 83