A fruit stall had 5 times as many pears as mangosteens. After 8 mangosteens were added, the number of pears became thrice the number of the mangosteens. How many mangosteens were there at the fruit stall at first?
| |
Pears |
Mangosteens |
| Before |
5x3 =
15 u |
1x3 =
3 u |
| Change |
|
+ 8 |
| After |
3x5 =
15 u |
1x5 =
5 u |
The number of pears remains unchanged. Make the number of pears the same. LCM of 3 and 5 is 15.
Number of mangosteens added
= 5 u - 3 u
= 2 u
2 u = 8
1 u = 8 ÷ 2 = 4
Number of mangosteens at the fruit stall at first
= 3 u
= 3 x 4
= 12
Answer(s): 12
