Jean bought five times as many biscuits as Harry. After Jean ate 6 biscuits, she had 10 more biscuits than Harry. How many biscuits did they buy altogether?
| |
Jean |
Harry |
Total |
| Before |
5 u |
1 u |
6 u |
| Change |
- 6 |
|
|
| After |
5 u - 6 |
1 u |
|
The number of biscuits that Harry had remains unchanged.
If Harry had another 10 biscuits in the end, the number of biscuits that Jean and Harry had would be the same.
5 u - 6 = 1 u + 10
5 u - 1 u = 10 + 6
4 u = 16
1 u = 16 ÷ 4 = 4
Total number of biscuits
= 5 u + 1 u
= 6 u
= 6 x 4
= 24
Answer(s): 24
