Keeping the significant figures in view, the sum of the physical quantities 
and 0.123 m is :
Text Solution
Verified by ExpertsThe correct answer is:
A
When adding measurements, the result must be limited to the least number of decimal places among all quantities.
The measurements are: 52.01 m (2 decimal places), 153.2 m (1 decimal place), and 0.123 m ( 3 decimal places). The limiting factor is 1 decimal place.
Calculating the sum: 
.
Rounding to 1 decimal place gives 205.3 m.
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