SSC Stenographer Grade C & D practice question
A 628 m long train crosses a man walking at a speed of 10.1 km/h in the opposite direction in 12 seconds. What is the speed (in km/h) of the train?
From a SSC Stenographer Grade C & D General Awareness practice set · General Awareness
Tap an option to check your answer.
Show answer and explanation
Correct answer: (D) 178.3
Since they move in opposite directions, relative speed = 628/12 m/s = 188.4 km/h; subtracting the man's speed (10.1 km/h, opposite direction contributes to relative speed) gives the train's speed = 188.4−10.1 = 178.3 km/h.
हिंदी में प्रश्न
628 m लंबी एक ट्रेन विपरीत दिशा में 10.1 km/h की चाल से चल रहे एक व्यक्ति को 12 सेकंड में पार करती है। ट्रेन की चाल (km/h में) ज्ञात कीजिए।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (D) 178.3
चूँकि वे विपरीत दिशाओं में चलते हैं, सापेक्ष चाल = 628/12 मी/से = 188.4 किमी/घंटा; आदमी की चाल (10.1 किमी/घंटा) घटाने पर ट्रेन की चाल = 188.4−10.1 = 178.3 किमी/घंटा मिलती है।
More solved General Awareness questions
- The collective Tamil term for the three crowned kings of the Sangam age — the Chera, Chola and Pandya rulers — is?
- Who was Khudiram Bose's associate in the failed 1908 bomb attempt on Magistrate Kingsford at Muzaffarpur, and who shot himself to avoid…
- A sum of ₹5,890 is divided between Alok, Gita and Suresh such that if their shares are decreased by ₹320, ₹590 and ₹750, respectively…
- If the mean of 15 numbers is 25 and one number 36.2 is removed from the numbers, then the mean of the remaining numbers is:
- An electronics store offers two successive discounts on a laptop priced at ₹51,000. The first discount is 10%, and the second discount is…
- What should come in place of ? in the given series? 57 65 81 113 177 ?