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Each packet on the kitchen balance is marked with its mass in grams. How many grams must be added to the left pan to make the two pans balance?

Class 7Laws of ExponentsNumber System

A0 g
B112 g
C16 g
D8 g

Step-by-Step Solution

Left:

4 \times 2^{5} = 2^{2} \times 2^{5} = 2^{7} = 128

g. Right:

2^{7} + 2^{4} = 128 + 16 = 144

g. Add

144 - 128 = 16

g on the left.

Answer: C) 16 g

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