There were some packets and bottles. A packet weighed 3 kg and a bottle weighed 1 kg more. The total weight of the packets was 36 kg heavier than the total weight of the bottles. The number of packets and bottles were in the ratio 10 : 3. What was the total weight of the packets and the bottles?
|
Packets |
Bottles |
Total |
Heavier |
Number |
10 u |
3 u |
|
|
Value |
3 |
4 |
|
|
Total value |
30 u |
12 u |
42 u |
18 u |
Weight of 1 bottle
= 3 + 1
= 4 kg
Total weight of the packets heavier than the total weight of the bottles
= 30 u - 12 u
= 18 u
18 u = 36
1 u = 36 ÷ 18 = 2
Total weight of the packets and bottles
= 30 u + 12 u
= 42 u
= 42 x 2
= 84 kg
Answer(s): 84 kg