Sam had some pastries.
58 of them were macarons. The rest were tarts. He sold
56 of the macarons and 2 tarts. In the end, he had 205 pastries left. How many pastries did he sell?
|
Macarons |
Tarts |
Comparing pastries at first |
5x6 = 30 u |
3x6 = 18 u |
Before
|
6x5 = 30 u |
18 u |
Change
|
- 5x5 = - 25 u |
- 2 |
After
|
1x5 = 5 u |
18 u - 2 |
The number of macarons at first is repeated. Make the number of macarons at first the same. LCM of 5 and 6 is 30.
Total number of pastries left
= 5 u + 18 u - 2
= 23 u - 2
23 u - 2 = 205
23 u = 205 + 2
23 u = 207
1 u = 207 ÷ 23 = 9
Number of pastries that Sam sold
= 25 u + 2
= 25 x 9 + 2
= 225 + 2
= 227
Answer(s): 227