Ivan had to collect some fruits from two markets and deliver some fruits to another market. He collected from Market J and the ratio of pears to pomegranates was 3 : 4. When he reached Market K, he unloaded
78 of the pomegranates and some pears from his van. The ratio of pears to pomegranates became 2 : 3. At Market L, 55 pears and 38 pomegranates were collected and the number of pears to pomegranates became the same.
- How many fruits were there on his van after visiting Market L?
- How many pears were delivered to Market K?
|
Location |
Pears |
Pomegranates |
Comparing pears and pomegranates at first |
Market J |
3x6 = 18 u |
4x6 = 24 u |
Before 1 |
Market J |
18 u |
8x3 = 24 u |
Change 1 |
Market K |
- ? |
- 7x3 = - 21 u |
After 1 |
Market L |
2 u |
1x3 = 3 u |
Before 2 |
Market L |
2x1 = 2 u |
3x1 = 3 u |
Change 2 |
Market L |
+ 55 |
+ 38 |
After 2 |
Market L |
2 u + 55 |
3 u + 38 |
(a)
The number of pomegranates after unloading at Market K is repeated. Make the number of pomegranates left after unloading at Market K the same. LCM of 3 and 1 is 3.
The number of pomegranates collected at Market J is repeated. Make the number of pomegranates collected at Market J the same by multiplying 4 by 6.
The number of pears and pomegranates in the end is the same.
3 u + 38 = 2 u + 55
3 u - 2 u = 55 - 38
1 u = 17
Number of pears on his van after collecting from Market L
= 2 u + 55
= 2 x 17 + 55
= 34 + 55
= 89
Number of fruits on his van after collecting from Market L
= 2 x 89
= 178
(b)
Number of pears delivered to Market K
= 18 u - 2 u
= 16 u
= 16 x 17
= 272
Answer(s): (a) 178; (b) 272