Justin had some pastries.
27 of them were biscuits. The rest were macarons. He sold
34 of the biscuits and 2 macarons. In the end, he had 86 pastries left. How many more biscuits than macarons did he sell?
| |
Biscuits |
Macarons |
Comparing pastries
at first |
2x2 =
4 u |
5x2 =
10 u |
Before
|
4x1 =
4 u |
10 u |
Change
|
- 3x1 =
- 3 u |
- 2 |
After
|
1x1 =
1 u |
10 u - 2 |
The number of biscuits at first is repeated. Make the number of biscuits at first the same. LCM of 2 and 4 is 4.
Total number of pastries left
= 1 u + 10 u - 2
= 11 u - 2
11 u - 2 = 86
11 u = 86 + 2
11 u = 88
1 u = 88 ÷ 11 = 8
Number of more biscuits than macarons that Justin sold
= 3 u - 2
= 3 x 8 - 2
= 24 - 2
= 22
Answer(s): 22
