At a supermarket, the ratio of pears to peaches was 5 : 9. After Mary bought three-quarters of the peaches, there was a total of 261 pears and peaches left at the supermarket. How many fruits were there at first?
| |
Pears |
Peaches |
Total |
Comparing pears
and peaches at first |
5x4 =
20 u |
9x4 =
36 u |
56 u |
Before |
|
4x9 =
36 u |
|
Change |
|
- 3x9 =
- 27 u |
|
After |
20 u |
1x9 =
9 u |
261 |
The number of peaches at first is repeated. Make the number of peaches at first the same. LCM of 9 and 4 is 36.
Total number of fruits left
= 20 u + 9 u
= 29 u
29 u = 261
1 u = 261 ÷ 29 = 9
Number of fruits at first
= 20 u + 36 u
= 56 u
= 56 x 9
= 504
Answer(s): 504
