In a 500m race, the ratio of speeds of two contestants A and B is 3 : 4. A has a start of 140m. Then A wins by-
Solution
Correct Answer: Option C
To reach the winning post A will have to cover a distance of (500 - 140) m = 360 m.
While A covers 3 m, B covers 4 m.
While A covers 360 m, B covers (4/3) × 360) = 480 m.
Thus, when A reaches the winning post, B covers 480 m and therefore remains 20 m behind.
∴ A win by 20 m.
While A covers 3 m, B covers 4 m.
While A covers 360 m, B covers (4/3) × 360) = 480 m.
Thus, when A reaches the winning post, B covers 480 m and therefore remains 20 m behind.
∴ A win by 20 m.
Practice More Questions on Our App!
Download our app for free and access thousands of MCQ questions with detailed solutions