Question

The maximum error in the measurement of mass and length of the side of a cube are 2% and 1% respectively. The maximum error in its density is-

• A. 2%
• B. 1%
• C. 3%
• D. 5%

Answer 1

Answer: (D)

5%

Answer 2

r = $\frac{m}{a^{3}}$ ̃ % (r) = % (m) + 3 × % (1) = 5%