RRB Technician Grade 3 practice question
A stock of food is enough for 300 students in a hostel for 59 days. If 290 more students join, for how many days will the same food last?
From a RRB Technician Grade 3 Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (C) 30 days
Total food = 300 × 59 = 17700 person-days. New strength = 300 + 290 = 590. Days = 17700/590 = 30 days. (More people ⇒ fewer days; a direct proportion would give 116, which is wrong.)
हिंदी में प्रश्न
भोजन का एक भंडार 300 एक छात्रावास के छात्रों के लिए 59 दिनों के लिए पर्याप्त है। यदि 290 और छात्र आ जाएँ, तो वही भोजन कितने दिनों तक चलेगा?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 30 दिन
कुल भोजन = 300 × 59 = 17700 व्यक्ति-दिन। नई संख्या = 300 + 290 = 590। दिन = 17700/590 = 30 दिन। (अधिक लोग ⇒ कम दिन; समानुपात से 116 आता, जो गलत है।)
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