Ryan had to collect some fruits from two markets and deliver some fruits to another market. He collected from Market Q and the ratio of pomegranates to passion fruits was 7 : 8. When he reached Market R, he unloaded
56 of the passion fruits and some pomegranates from his lorry. The ratio of pomegranates to passion fruits became 3 : 4. At Market S, 48 pomegranates and 30 passion fruits were collected and the number of pomegranates to passion fruits became the same.
- How many fruits were there on his lorry after visiting Market S?
- How many pomegranates were delivered to Market R?
|
Location |
Pomegranates |
Passion Fruits |
Comparing pomegranates and passion fruits at first |
Market Q |
7x3 = 21 u |
8x3 = 24 u |
Before 1 |
Market Q |
21 u |
6x4 = 24 u |
Change 1 |
Market R |
- ? |
- 5x4 = - 20 u |
After 1 |
Market S |
3 u |
1x4 = 4 u |
Before 2 |
Market S |
3x1 = 3 u |
4x1 = 4 u |
Change 2 |
Market S |
+ 48 |
+ 30 |
After 2 |
Market S |
3 u + 48 |
4 u + 30 |
(a)
The number of passion fruits after unloading at Market R is repeated. Make the number of passion fruits left after unloading at Market R the same. LCM of 4 and 1 is 4.
The number of passion fruits collected at Market Q is repeated. Make the number of passion fruits collected at Market Q the same by multiplying 8 by 3.
The number of pomegranates and passion fruits in the end is the same.
4 u + 30 = 3 u + 48
4 u - 3 u = 48 - 30
1 u = 18
Number of pomegranates on his lorry after collecting from Market S
= 3 u + 48
= 3 x 18 + 48
= 54 + 48
= 102
Number of fruits on his lorry after collecting from Market S
= 2 x 102
= 204
(b)
Number of pomegranates delivered to Market R
= 21 u - 3 u
= 18 u
= 18 x 18
= 324
Answer(s): (a) 204; (b) 324