Question

While subtracting 24.24 from 25.7630, the correct answer to be expressed in significant numbers will be :

• A. 1.52
• B. 1.523
• C. 1.523
• D. 1.5

Answer 1

The correct option is A 1.52

The result of subtraction cannot have more digits to the right of the decimal point than either of the original numbers.

While subtracting 24.24 from 25.7630, the correct answer to be expressed in significant numbers will be 1.52.

24.24 contains two decimal places and 25.7630 contains 4 decimal places.
Hence, the answer of subtraction will contain 2 decimal places.