A fruit stall had 4 times as many dragonfruits as pears. After 14 pears were sold, the number of dragonfruits became 12 times the number of the remaining pears. How many pears were there at the fruit stall at first?
| |
Dragonfruits |
Pears |
| Before |
4x3 =
12 u |
1x3 =
3 u |
| Change |
|
- 14 |
| After |
12 u |
1 u |
The number of dragonfruits remains unchanged. Make the number of dragonfruits the same. LCM of 4 and 12 is 12.
Number of pears in the end = 3 u - 14
3 u - 14 = 1 u
3 u - 1 u = 14
2 u = 14
1 u = 14 ÷ 2 = 7
Number of pears at the fruit stall at first
= 3 u
= 3 x 7
= 21
Answer(s): 21
