Ken had some pastries.
58 of them were scones. The rest were macarons. He sold
56 of the scones and 18 macarons. In the end, he had 97 pastries left. How many pastries did he sell?
|
Scones |
Macarons |
Comparing pastries at first |
5x6 = 30 u |
3x6 = 18 u |
Before
|
6x5 = 30 u |
18 u |
Change
|
- 5x5 = - 25 u |
- 18 |
After
|
1x5 = 5 u |
18 u - 18 |
The number of scones at first is repeated. Make the number of scones at first the same. LCM of 5 and 6 is 30.
Total number of pastries left
= 5 u + 18 u - 18
= 23 u - 18
23 u - 18 = 97
23 u = 97 + 18
23 u = 115
1 u = 115 ÷ 23 = 5
Number of pastries that Ken sold
= 25 u + 18
= 25 x 5 + 18
= 125 + 18
= 143
Answer(s): 143