Mr John sold some mangosteens, starfruits and oranges. The ratio of the number of mangosteens sold to the total number of fruits sold was 2 : 7. The ratio of the number of starfruits sold to the number of oranges sold was 3 : 7. He sold 36 more oranges than mangosteens. Find the total number of fruits that he sold.
| Mangosteens |
Starfruits |
Oranges |
Total |
| 2x2 |
5x2 |
7x2 |
| |
3 |
7 |
|
| 4 u |
3 u |
7 u |
14 u |
The total number of starfruits and oranges is repeated. Make the total number of starfruits and oranges the same. LCM of 5 and 10 is 10.
Number of more oranges than mangosteens
= 7 u - 4 u
= 3 u
3 u = 36
1 u = 36 ÷ 3 = 12
Total number of fruits that Mr John sold
= 14 u
= 14 x 12
= 168
Answer(s): 168
