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
\(= \frac{3.5}{7.5} \times 100 \)
\(= \frac{35}{3} \times 4 = \frac{140}{3} \)
\(= 46\frac{2}{3}\)