The average weight of a family of 4 members is 45 kg. The grandfather and the grandmother come to visit the family. Now the
average weight of the 6 members of the family is 48 kg. Find the average weight of the grandparents (in kg).
This questions was previously asked in
SSC CHSL 31st May 2022 Shift-2
Explanation:
- Start with the original family of 4 members: Their average weight is 45 kg.
- Total weight of these 4 members is: 4 * 45 = 180 kg.
- Grandparents arrive, making the family size 6 with a new average weight of 48 kg.
- Total weight of the 6 members is: 6 * 48 = 288 kg.
- To find the grandparents' combined weight, subtract the weight of the original family from the total weight: 288 kg - 180 kg = 108 kg.
- The average weight of the grandparents is 108 kg / 2 = 54 kg.
- Thus, the correct option is Option 4.
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By: santosh ProfileResourcesReport error