Subject: General Aptitude · Chapter: Time and Distance · Exam: · Marks: · Difficulty:
If a runner takes as much time in running 20 metres as the car takes in covering 50 metres. The distance covered by the runner during the time the car covers 1 km is [DMRC-Jr. Engineer (Electrical) Exam, 2016]
(a)400 metres
(b)40 metres
(c)440 metres
(d)None of these
Answer
Answer (as printed): C
Explanation
According to the question, $$\begin{aligned} & \therefore 50 \mathrm{m}=20 \mathrm{m} \\ & \therefore 1 \mathrm{m}=\frac{20}{50} \mathrm{m} \\ & \therefore 1000 \mathrm{m}=\left(\frac{20}{50} \times 1000\right) \mathrm{m} \equiv 400 \mathrm{m} \end{aligned}$$