1.

1). 1802). 1703). 1204). 150

Answer»

The weights of 4 BOXES are 30, 20, 60 and 70 kilograms

1) 180 ⇒ 30 + 20 + 60 + 70 = 120

2) 170 ⇒ can’t be formed

3) 120 ⇒ 30 + 20 + 70

4) 150 ⇒ 20 + 60 + 70 = 150

Hence, “170” cannot be the TOTAL weight. 



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