Question

A shipping clerk has five boxes of different but unknown weights each weighing less than 100 kg. The clerk weighs the boxes in pairs. The weights obtained are 110, 112, 113, 114, 115, 116, 117, 118, 120 and 121 kg.

What is the weight, in kg, of the heaviest box?

plzzzz help me..... solve n explain me

Answer 1

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