Mrs Riordan baked some cookies. She gave
37 of the cookies to her uncle and
38 of the remainder to her auntie. Given that she gave 39 less cookies to her auntie than her uncle. How many cookies did
she bake at first?
| Uncle |
Remainder |
Total |
| 3x2 |
4x2 |
7x2 |
| |
Auntie |
Left |
|
| 6 u |
3 u |
5 u |
14 u |
Number of less cookies that Mrs Riordan gave to her auntie than her uncle
= 6 u - 3 u
= 3 u
3 u = 39
1 u = 39 ÷ 3 = 13
Number of cookies that Mrs Riordan baked at first
= 14 u
= 14 x 13
= 182
Answer(s): 182
