SSC CHSL Tier-1 previous year question
A can do a job in 12 days, B in 24 days. They work together 4 days, then A leaves. How many more days for B to finish?
Asked in SSC CHSL Tier-1 (14 Nov 2025 Shift 2) · Quantitative Aptitude
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Correct answer: (A) 12 days
Combined rate = 1/12+1/24 = 1/8. Work done in 4 days = 4/8 = 1/2. Remaining = 1/2. B alone (rate 1/24) takes (1/2)/(1/24) = 12 days.
हिंदी में प्रश्न
A एक काम को 12 दिनों में और B 24 दिनों में पूरा कर सकता है। वे 4 दिनों तक साथ काम करते हैं, फिर A काम छोड़ देता है। B को कितने और दिन लगेंगे?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (A) 12 दिन
संयुक्त दर = 1/12+1/24 = 1/8। 4 दिनों में काम = 1/2। शेष = 1/2। B अके ले (दर 1/24) से समय = 12 दिन।
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