By Mansi Yadav

Verified by Ajay Kumar

A circular track has a radius of 28 m. What is the distance covered in 2 full rounds?

  1. 176 m

  2. 346 m

  3. 352 m

  4. 564 m

Answer: C

Solution

Solution: Distance in one round equals the circumference, \(2\pi r\). For two rounds, distance \(=2\times2\pi r=4\pi r\). Using \(\pi=\frac{22}{7}\) and \(r=28\), distance \(=4\times\frac{22}{7}\times28=352\) m. Trick: For two full rounds, multiply the circumference by 2.

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