Question

Rohit, Peter and Santosh walk around a circular park. They take $\frac{1}{3}h,\frac{2}{5}h$ and $\frac{5}{12}h$ to complete one round. What is the total time taken by them to complete a round in minutes?

• A. 79 minutes
• B. 50 minutes
• C. 60 minutes
• D. 69 minutes

Answer 1

The correct option is D 69 minutes

Total time taken by Rohit, Peter and Santosh to walk around a circular park = $(\frac{1}{3}+\frac{2}{5}+\frac{5}{12})h$
$=\frac{20}{60}+\frac{24}{60}+\frac{25}{60}$
$=\frac{69}{60}\times 60$ minutes = 69 minutes