At a stall, the ratio of dates to coconuts was 7 : 9. After Gem bought three-fifths of the coconuts, there was a total of 477 dates and coconuts left at the stall. How many fruits were there at first?
| |
Dates |
Coconuts |
Total |
Comparing dates
and coconuts at first |
7x5 =
35 u |
9x5 =
45 u |
80 u |
Before |
|
5x9 =
45 u |
|
Change |
|
- 3x9 =
- 27 u |
|
After |
35 u |
2x9 =
18 u |
477 |
The number of coconuts at first is repeated. Make the number of coconuts at first the same. LCM of 9 and 5 is 45.
Total number of fruits left
= 35 u + 18 u
= 53 u
53 u = 477
1 u = 477 ÷ 53 = 9
Number of fruits at first
= 35 u + 45 u
= 80 u
= 80 x 9
= 720
Answer(s): 720
