Mr Andy sold some starfruits, lemons and pears. The ratio of the number of starfruits sold to the total number of fruits sold was 3 : 10. The ratio of the number of lemons sold to the number of pears sold was 2 : 19. He sold 90 more pears than starfruits. Find the total number of fruits that he sold.
| Starfruits |
Lemons |
Pears |
Total |
| 3x3 |
7x3 |
10x3 |
| |
2 |
19 |
|
| 9 u |
2 u |
19 u |
30 u |
The total number of lemons and pears is repeated. Make the total number of lemons and pears the same. LCM of 7 and 21 is 21.
Number of more pears than starfruits
= 19 u - 9 u
= 10 u
10 u = 90
1 u = 90 ÷ 10 = 9
Total number of fruits that Mr Andy sold
= 30 u
= 30 x 9
= 270
Answer(s): 270
