There were some packets and bottles. A packet weighed 3 kg and a bottle weighed 4 kg more. The total weight of the packets was 63 kg heavier than the total weight of the bottles. The number of packets and bottles were in the ratio 7 : 2. What was the total weight of the packets and the bottles?
|
Packets |
Bottles |
Total |
Heavier |
Number |
7 u |
2 u |
|
|
Value |
3 |
7 |
|
|
Total value |
21 u |
14 u |
35 u |
7 u |
Weight of 1 bottle
= 3 + 4
= 7 kg
Total weight of the packets heavier than the total weight of the bottles
= 21 u - 14 u
= 7 u
7 u = 63
1 u = 63 ÷ 7 = 9
Total weight of the packets and bottles
= 21 u + 14 u
= 35 u
= 35 x 9
= 315 kg
Answer(s): 315 kg