At a fruit stall, there were 492 starfruits and mangosteens at first.
16 of the starfruits and
18 of the mangosteens were sold. In the end, there were same number of starfruits and mangosteens. How many more starfruits than mangosteens were sold?
| |
Starfruits |
Mangosteens |
| Before |
6x7 =
42 u |
8x5 =
40 u |
| Change |
- 1x7 =
- 7 u
|
- 1x5 =
- 5 u
|
| After |
5x7 =
35 u |
7x5 =
35 u |
Comparing starfruits
and mangosteens in the end |
1x35 =
35 u |
1x35 =
35 u |
The number of starfruits and mangosteens in the end is the same. Make the number of starfruits and mangosteens in the end the same. LCM of 5, 7 and 1 is 35.
Number of starfruits and mangosteens in the end
= 42 u + 40 u
= 82 u
82 u = 492
1 u = 492 ÷ 82 = 6
Number of more starfruits than mangosteens sold
= 7 u - 5 u
= 2 u
= 2 x 6
= 12
Answer(s): 12
