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Of 336 kg what per cent is 42 kg ?

  • A.12.5%
  • B.10.5%
  • C.13%
  • D.7%

Answer: A

42 kg is 12.5% of 336 kg.

\[ \frac{42}{336} \times 100 = \frac{1}{8} \times 100 = 12.5\% \]

Since \(336 = 8 \times 42\), 42 is exactly one eighth of 336, which is 12.5%. The other percentages do not match this ratio: 10.5% of 336 is about 35.3 kg and 13% is about 43.7 kg.

Check: 12.5% of 336 is \(336 \div 8 = 42\) kg, exactly the given amount.

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