Question
The average weight of seven members of a family is 18 kg. If the head of the family is not considered, the average weight of other members becomes less by 6 kg. The weight of the head of the family is
Solution
Answer (E)
Explanation:
Total weight of seven members of the family = 18 × 7 = 126kg
Total weight of the family without its head = (18 ̶ 6) × 6 = 72kg
Weight of the head of the family = (126 ̶ 72) = 54kg.
Answer (E)
Explanation:
Total weight of seven members of the family = 18 × 7 = 126kg
Total weight of the family without its head = (18 ̶ 6) × 6 = 72kg
Weight of the head of the family = (126 ̶ 72) = 54kg.