Ben had some mangosteens and pears. The number of mangosteens and pears left were the same after Ben sold
12 of the mangosteens and
35 of the pears. If he had 84 mangosteens at first,
- How many mangosteens were left?
- How many pears did Ben have at first?
| |
Mangosteens |
Pears |
Before |
2x2 =
4 u |
5 u |
Change |
- 1x2 =
- 2 u |
- 3 u |
After |
1x2 =
2 u |
2 u |
(a)
Fraction of the mangosteens left
= 1 -
12 =
12 Fraction of the pears left
= 1 -
35 =
25The number of mangosteens and pears left were the same. Make the number of mangosteens and pears left the same. LCM of 1 and 2 is 2.
Number of mangosteens at first = 4 u
Number of pears at first = 5 u
4 u = 84
1 u = 84 ÷ 4 = 21
Number of mangosteens left
= 2 u
= 2 x 21
= 42
(b)
Number of pears at first
= 5 u
= 5 x 21
= 105
Answer(s): (a) 42; (b) 105
