At a fruit stall, there were 1640 mangoes and mangosteens at first.
16 of the mangoes and
18 of the mangosteens were sold. In the end, there were same number of mangoes and mangosteens. How many more mangoes than mangosteens were sold?
| |
Mangoes |
Mangosteens |
| Before |
6x7 =
42 u |
8x5 =
40 u |
| Change |
- 1x7 =
- 7 u
|
- 1x5 =
- 5 u
|
| After |
5x7 =
35 u |
7x5 =
35 u |
Comparing mangoes
and mangosteens in the end |
1x35 =
35 u |
1x35 =
35 u |
The number of mangoes and mangosteens in the end is the same. Make the number of mangoes and mangosteens in the end the same. LCM of 5, 7 and 1 is 35.
Number of mangoes and mangosteens in the end
= 42 u + 40 u
= 82 u
82 u = 1640
1 u = 1640 ÷ 82 = 20
Number of more mangoes than mangosteens sold
= 7 u - 5 u
= 2 u
= 2 x 20
= 40
Answer(s): 40
