There were some packets and bottles. A packet weighed 4 kg and a bottle weighed 2 kg more. The total weight of the packets was 12 kg heavier than the total weight of the bottles. The number of packets and bottles were in the ratio 7 : 4. What was the total weight of the packets and the bottles?
|
Packets |
Bottles |
Total |
Heavier |
Number |
7 u |
4 u |
|
|
Value |
4 |
6 |
|
|
Total value |
28 u |
24 u |
52 u |
4 u |
Weight of 1 bottle
= 4 + 2
= 6 kg
Total weight of the packets heavier than the total weight of the bottles
= 28 u - 24 u
= 4 u
4 u = 12
1 u = 12 ÷ 4 = 3
Total weight of the packets and bottles
= 28 u + 24 u
= 52 u
= 52 x 3
= 156 kg
Answer(s): 156 kg