A box contains 12 pole and 7 pieces of net. Each piece of net weight 0.2 gm. Each pole weight 1.1 gm. The box and its contents together weight 16.25 gm. How much does the empty box weight ?

A 1.25 gm

B 1.65 gm

C 2.25 gm

D 2.65 gm

Correct Answer: Option B

Solution: Weight of 12 poles = 12 \( \times \) 1.1 = 13.2

Weight of 7 nets = (7 \( \times \) 0.2) = 1.4 gm

Total weight of 12 poles and 7 nets = 13.2 + 1.4 = 14.6 gm

so, empty box weight = 16.25 - 14.6 = 1.65 gm