SSC GD Constable previous year question
Ravi can complete one-fourth of a work in 15 days, Chhavi can complete one-third of the work in 18 days, and Dhani can complete half of the work in 24 days. In how much time can Ravi, Chhavi, and Dhani together complete three-fourths of the work?
Asked in SSC GD Constable 2025: 06 Feb 2025 Shift 1 (Morning) · Quantitative Aptitude
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Correct answer: (A) 13 47/121 days
Full-work times: Ravi = 60 days, Chhavi = 54 days, Dhani = 48 days. Combined 1-day work = 1/60+1/54+1/48. Time for 3/4 work = (3/4) ÷ (combined rate) = 13 47/121 days.
हिंदी में प्रश्न
रवि कुल कार्य का एक-चौथाई कार्य 15 दिनों में पूरा कर सकता है, छवि कुल कार्य का एक-तिहाई कार्य 18 दिनों में पूरा कर सकती है, धनी कुल कार्य का आधा कार्य 24 दिनों में पूरा कर सकती है। रवि, छवि और धनी साथ मिलकर कार्य का तीन-चौथाई कार्य कितने समय में पूरा कर सकते हैं?
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सही उत्तर: (A) 13 47/121 दिन
पूर्ण कार्य समय: रवि = 60 दिन, छवि = 54 दिन, धनी = 48 दिन। संयुक्त 1 दिन का कार्य = 1/60+1/54+1/48। 3/4 कार्य के लिए समय = (3/4) ÷ (संयुक्त दर) = 13 47/121 दिन।
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