Correct Answer: Option D
A:B = 100:90.
A:C = 100:87.
B/C=B/A×A/C= 90/100×100/87 = 30/29.
When B runs 30 m, C runs 29 m.
When B runs 180 m, C runs {(29/30)×180}m = 174 m.
So, B beats C by (180-174)m = 6 m.
Download our app for free and access thousands of MCQ questions with detailed solutions