Delhi Police Constable practice question
A garrison of 125 soldiers has provisions for 43 days. After 25 days, 125 more soldiers join them. For how many more days will the remaining provisions last?
From a Delhi Police Constable Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (A) 9 days
After 25 days the food left = 125 × (43 − 25) = 2250 person-days. New strength = 125 + 125 = 250. Remaining days = 2250/250 = 9 days. (Using the full 43 days instead of the remaining 18 gives 21.5 — the standard trap.)
हिंदी में प्रश्न
125 सैनिक की एक टुकड़ी के पास 43 दिनों की रसद है। 25 दिनों के बाद 125 और सैनिक उनसे आ मिलते हैं। शेष रसद और कितने दिनों तक चलेगी?
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सही उत्तर: (A) 9 दिन
25 दिनों के बाद बचा भोजन = 125 × (43 − 25) = 2250 व्यक्ति-दिन। नई संख्या = 125 + 125 = 250। शेष दिन = 2250/250 = 9 दिन। (शेष 18 के बजाय पूरे 43 दिन लेने पर 21.5 आता है — यही मानक जाल है।)
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