Discussion

The weights of two iron balls are 3.5 kg and 7.5 kg. What is the percentage
weight of the 1st ball with respect to 2nd ball.

Answer: A

Weight of 1st ball \(= 3.5 kg\) and weight of second ball \(= 7.5 kg\)

⇒ Percentage weight of the 1st ball with respect to 2nd ball

\(= \frac{3.5}{7.5} \times 100 \)

\(= \frac{35}{3} \times 4 = \frac{140}{3} \)

\(= 46\frac{2}{3}\)

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