Practice Question Bankmedium Level
ID: 69386b3bb573ee20fadccab9
QUESTION STATEMENT:द्विभाषी / Bilingual
दो व्यक्ति A तथा B, दो नगरों से जो एक-दूसरे से 120 किमी की दूरी पर स्थित हैं एक-दूसरे की ओर क्रमशः 5 किमी/घंटा तथा 7 किमी/घंटा की चाल से चलते हैं। वे कितने समय बाद मिलेंगे?
Two persons A and B start walking from two towns that are 120 km apart. If they walk towards each other at speeds of 5 km/h and 7 km/h respectively, after how much time will they meet?
SELECT CORRECT OPTION:
A
10 घंटे
10 hours
Correct
B
4 घंटे
4 hours
C
7 घंटे
7 hours
D
9 घंटे
9 hours
Official Solution & Explanation:
Correct Answer: Option A(10 घंटे)
विपरीत दिशाओं में सापेक्ष गति जुड़ती है: $5 + 7 = 12$ किमी/घंटा। समय = दूरी / गति = $120 / 12 = 10$ घंटे।
Relative speed in opposite directions adds up: $5 + 7 = 12$ km/h. Time = Distance / Speed = $120 / 12 = 10$ hours.

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