At a fruit stall, there were 1230 mangosteens and pears at first.
16 of the mangosteens and
18 of the pears were sold. In the end, there were same number of mangosteens and pears. How many less pears than mangosteens were sold?
| |
Mangosteens |
Pears |
| Before |
6x7 =
42 u |
8x5 =
40 u |
| Change |
- 1x7 =
- 7 u
|
- 1x5 =
- 5 u
|
| After |
5x7 =
35 u |
7x5 =
35 u |
Comparing mangosteens
and pears in the end |
1x35 =
35 u |
1x35 =
35 u |
The number of mangosteens and pears in the end is the same. Make the number of mangosteens and pears in the end the same. LCM of 5, 7 and 1 is 35.
Number of mangosteens and pears in the end
= 42 u + 40 u
= 82 u
82 u = 1230
1 u = 1230 ÷ 82 = 15
Number of less pears than mangosteens were sold
= 7 u - 5 u
= 2 u
= 2 x 15
= 30
Answer(s): 30
