SSC CHSL Tier-1 practice question
Rahul can complete a piece of work in 14 days and Priya can complete the same work in 18 days. Working together, in how many days will they complete the work?
From a SSC CHSL Tier-1 Reasoning practice set · Reasoning
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Correct answer: (B) 7.88 days
Rahul's 1-day work = 1/14; Priya's 1-day work = 1/18. Together, 1-day work = 1/14 + 1/18 = 63/8. So time taken = 8/63 = 7.88 days.
हिंदी में प्रश्न
Rahul एक काम को 14 दिनों में पूरा कर सकता है और Priya उसी काम को 18 दिनों में पूरा कर सकता है। दोनों मिलकर काम करें तो वे काम कितने दिनों में पूरा करेंगे?
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सही उत्तर: (B) 7.88 days
Rahul का 1 दिन का काम = 1/14; Priya का 1 दिन का काम = 1/18। दोनों मिलकर 1 दिन का काम = 1/14 + 1/18 = 63/8। अतः समय = 8/63 = 7.88 days।
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