The average weight of 10 oarsmen in a boat increases by exactly 1.5 kg when one of the crew, who weighs 58 kg, is replaced by a completely new man. What is the weight of the new man?

Correct answer: 73 kg

Explanation: ✅ Correct Answer: B) 73 kg 📚 Explanation: When the new man joins, the average weight of all 10 men goes up by 1.5 kg. This means the total aggregate weight of the group increases by 10 × 1.5 kg = 15 kg. For the total weight to increase by 15 kg, the incoming new man must weigh exactly 15 kg more than the outgoing man. Therefore, his weight is 58 + 15 = 73 kg.