If a delivery agent cycles at 15 km/h instead of 11 km/h, he travels 20 km more in the same allotted duration. Find the actual distance covered by him at his lower speed. MCQ with Answer and Explanation
If a delivery agent cycles at 15 km/h instead of 11 km/h, he travels 20 km more in the same allotted duration. Find the actual distance covered by him at his lower speed.
A. 60 km
B. 65 km
C. 55 km
D. 50 km
Answer: Option C
Solution (By JKSSB Mock Tests)
Let the time duration be t hours. Distance difference = 15t - 11t = 4t = 20 km => t = 5 hours. Distance covered at lower speed = 11 * 5 = 55 km.
Explanation:
Distance 1 = 50 * 3 = 150 km. Distance 2 = 70 * 2 = 140 km. Total distance = 290 km. Total time = 5 hours. Average speed = 290 / 5 = 58 km/h.
A real estate agent drives from his house to an office at 10 km/h and arrives 12 minutes late. If he increases his speed to 15 km/h, he arrives 4 minutes early. Find the distance.
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