DP Constable Time-Speed-Work Bilingual Test 10

Time, Speed & Work / समय, चाल और कार्य practice in Hindi-English with original DP Constable style questions, timer, negative marking and explanation review.

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DP Constable Chapter Test

DP Constable Time-Speed-Work Bilingual Test 10

Time-work, pipes, speed-distance, trains, boats and man-day questions. Test 10 has original Hindi-English DP Constable style questions with explanations. Use it as a short Delhi Police CBT drill: solve, submit, review every explanation, then move to the next chapter set.

Questions

Duration

8 min

Marking

+1 / -0.25 (Max 5)

Sections

Time, Speed & Work / समय, चाल और कार्य | 5 questions

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Preview all 5 questions in DP Constable Time-Speed-Work Bilingual Test 10 (no login required)

Numerical Ability / संख्यात्मक योग्यता — Time and Work / समय-कार्य
1. A finishes in 14 days and B in 18 days. Together time? / A 14 दिन और B 18 दिन में कार्य करते हैं। साथ में समय?
- A. 6.88 days
- B. 7.88 days (Correct)
- C. 8.88 days
- D. 9.88 days
Explanation: Together time = ab/(a+b). / संयुक्त समय ab/(a+b) से मिलता है।
Numerical Ability / संख्यात्मक योग्यता — Efficiency / दक्षता
2. A:B efficiency is 4:6; together they finish in 13 days. A alone? / दक्षता 4:6, साथ में 13 दिन। A अकेला?
- A. 30.5 days
- B. 32.5 days (Correct)
- C. 34.5 days
- D. 36.5 days
Explanation: Total work is 130; A time = work/4. / दक्षता से कुल कार्य निकालें।
Numerical Ability / संख्यात्मक योग्यता — Pipes / पाइप
3. A fills a tank in 9 hours and B empties it in 18 hours. Net filling time? / A 9 घंटे में भरता और B 18 घंटे में खाली करता है। समय?
- A. 16 hours
- B. 18 hours (Correct)
- C. 20 hours
- D. 22 hours
Explanation: Net rate = 1/9 - 1/18 = 1/18. / शुद्ध दर से समय 18 घंटे है।
Numerical Ability / संख्यात्मक योग्यता — Speed-Distance / चाल-दूरी
4. A vehicle runs at 138 km/h for 6 hours. Distance? / वाहन 138 किमी/घंटा से 6 घंटे चलता है। दूरी?
- A. 690 km
- B. 828 km (Correct)
- C. 966 km
- D. 1104 km
Explanation: Distance = speed x time = 828 km. / दूरी = चाल x समय।
Numerical Ability / संख्यात्मक योग्यता — Trains / रेल
5. A 370 m train crosses a pole in 10 s. Speed in km/h? / 370 मी ट्रेन खंभे को 10 सेकंड में पार करती है। चाल?
- A. 128.2 km/h
- B. 133.2 km/h (Correct)
- C. 138.2 km/h
- D. 143.2 km/h
Explanation: Speed = distance/time, then multiply by 18/5. / मी/से को किमी/घंटा में बदलें।