Finding the Weight of the Heaviest Package

Question

The total weight of three packages is 60 kg.

If the two heaviest packages weigh 50 kg together and the two lightest weigh 25 kg together, what is the weight of the heaviest package?

Answer 1

If the total is 60 and the two heaviest weigh 50, then the lightest is 10 (60 - 50). The middle one is 15 (25 - 10) and the heaviest is 35 (50 - 15).