Solution: Find the weight of the heavier boy

When one boy is sitting 1.2 m from the center of a see-saw, another boy must to sit on the other side 1.5 m from the center to maintain an even balance.

Problem Statement:

When one boy is sitting 1.2 m from the center of a see-saw, another boy must to sit on the other side 1.5 m from the center to maintain an even balance. However, when the first boy carries an additional weight of 14 kg and sit 1.8 m from the center, the second boy must move to 3 m from the center to balance. Neglecting the weight of the see-saw, find the weight of the heavier boy.

• A. 30 kg
• B. 42 kg
• C. 34 kg
• D. 45 kg

The weight of the heavier boy is 42 kg.

Solution:

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