The speeds of two cars are in the ratio 5 : 3. If they cover the same total distance, and the slower car takes 2.5 hours, how much time does the faster car take? MCQ with Answer and Explanation
The speeds of two cars are in the ratio 5 : 3. If they cover the same total distance, and the slower car takes 2.5 hours, how much time does the faster car take?
A. 1.2 hours
B. 2.0 hours
C. 1.5 hours
D. 1.8 hours
Answer: Option C
Solution (By JKSSB Mock Tests)
Ratio of speeds = 5:3, so ratio of times taken = 3:5. The slower car corresponds to 5 parts = 2.5 hours => 1 part = 0.5 hours. Time for the faster car = 3 parts = 3 * 0.5 = 1.5 hours.
A motorboat registers a speed of 14 km/h in still water. If the river current tracks at 2 km/h, find the duration required to complete a 48 km downstream course.
A motor car finishes a journey in 6 hours. It covers the first half of the distance at 40 km/h and the second half at 20 km/h. Find the total distance covered.
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