| Objects | Mass |
| P | 3.6 kg |
| Q | 3.06 kg |
| R | 3.060 kg |
| S | 3kg 6 g |
A) P and Q
B) Q and R
C) R and S
D) P and S
Correct Answer: B
Solution :
\[~\text{P}=\text{3}.\text{6 kg }=\text{ 36}00\text{ g}\] \[\text{Q}=\text{3}.0\text{6 kg}=\text{3}0\text{6}0\text{ g}\] \[\text{R}=\text{3}.0\text{6}0\text{ kg }=\text{ 3}0\text{6}0\text{ g}\] \[\text{S}=\text{3 kg 6 g}=\text{3}00\text{6 g}\] Hence, Q and R have the same mass.
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