There were some bottles and packets. A bottle weighed 4 kg and a packet weighed 5 kg more. The total weight of the bottles was 120 kg heavier than the total weight of the packets. The number of bottles and packets were in the ratio 7 : 2. What was the total weight of the bottles and the packets?
|
Bottles |
Packets |
Total |
Heavier |
Number |
7 u |
2 u |
|
|
Value |
4 |
9 |
|
|
Total value |
28 u |
18 u |
46 u |
10 u |
Weight of 1 packet
= 4 + 5
= 9 kg
Total weight of the bottles heavier than the total weight of the packets
= 28 u - 18 u
= 10 u
10 u = 120
1 u = 120 ÷ 10 = 12
Total weight of the bottles and packets
= 28 u + 18 u
= 46 u
= 46 x 12
= 552 kg
Answer(s): 552 kg