The speed of two luxury sedans are in the ratio 6 : 7. If car A takes 2.1 hours to cover a specific lap distance, find the time taken by car B. MCQ with Answer and Explanation
The speed of two luxury sedans are in the ratio 6 : 7. If car A takes 2.1 hours to cover a specific lap distance, find the time taken by car B.
A. 2.2 hours
B. 1.8 hours
C. 1.5 hours
D. 2.0 hours
Answer: Option B
Solution (By JKSSB Mock Tests)
Ratio of speeds A:B = 6:7, so ratio of times taken A:B = 7:6. Given 7 parts = 2.1 hours for car A => 1 part = 0.3 hours. Time taken by car B = 6 parts = 6 * 0.3 = 1.8 hours.
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