A car covers a distance from town X to town Y at a speed of 45 km/h and returns at a speed of 75 km/h. If the total journey takes 8 hours, find the one-way distance between the two towns. MCQ with Answer and Explanation
A car covers a distance from town X to town Y at a speed of 45 km/h and returns at a speed of 75 km/h. If the total journey takes 8 hours, find the one-way distance between the two towns.
A. 250 km
B. 210 km
C. 225 km
D. 240 km
Answer: Option C
Solution (By JKSSB Mock Tests)
Let the one-way distance be d km. Time taken forward = d/45 and return = d/75. Given: d/45 + d/75 = 8. (5d + 3d) / 225 = 8 => 8d / 225 = 8 => d = 225 km.
The speed of a boat in still water is 15 km/h and the speed of the current is 3 km/h. How much distance can the boat cover upstream in exactly 3 hours?
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