1.

The average weight of 61 sticks in a box is 6.1 kg. On keeping a new stick in the box, the average weight of sticks in the box increased to 6.2 kg. Find the weight of the new stick put in the box. (In kg)

A. 12.3
B. 12.9
C. 12.5
D. 12.7
Answer» B. 12.9


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