Question : The average weight of the 25 members of the group is 39 kg. The average weight of 27 members of another group is 21 kg. What will be the total weight of the members of both groups?
Option 1: 1426 kg
Option 2: 1542 kg
Option 3: 1507 kg
Option 4: 1714 kg
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Correct Answer: 1542 kg
Solution : The average weight of 25 members of a group = 39 kg Total weight of 25 members of a group = 39 × 25 = 975 kg The average weight of 27 members of another group = 21 kg Total weight of 27 members of another group = 21 × 27 = 567 kg The total weight of the members of both groups = 975 + 567 = 1542 kg Hence, the correct answer is 1542 kg.
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