SarkariPYQ

SSC Selection Post 2022 PYQ — Question 62

SSC Selection Post - Matriculation Level 2022 - 2 Aug 2022 - Shift 1 • Quantitative Aptitude • Q62

Back to paper

The speeds of three cars are in the ratio of 5 : 4 : 3. What is the ratio between the time taken by these cars to cover the same distance?

Show answer & explanation

Correct answer: D

Explanation

The correct answer is option 4 i.e. 12 : 15 : 20.

Time and speed are inversely proportional when distance is the same.

Time ratio = 15:14:13\frac{1}{5} : \frac{1}{4} : \frac{1}{3}

Take LCM of denominators (5, 4, 3) = 60

Time ratio = 605:604:603=12:15:20\frac{60}{5} : \frac{60}{4} : \frac{60}{3} = 12 : 15 : 20