RRB NTPC (Graduate)27 Mar 2026Shift 2Mixture and Alligation

There are 25 members in group A, 32 members in group B and 31 members in group C. All the members of these groups went to a restaurant. The average amounts spent on each member of groups A, B and C are ₹101, ₹249 and ₹269, respectively. The overall average amount (in ₹) spent per member is:

समूह A में 25 सदस्य, समूह B में 32 सदस्य और समूह C में 31 सदस्य हैं। इन सभी समूहों के सदस्य एक रेस्टोरेंट में गए। समूह A, B और C के प्रत्येक सदस्य पर व्यय की गई औसत (Average) धनराशि क्रमशः ₹101, ₹249 और ₹269 है। प्रति सदस्य व्यय की गई समग्र औसत धनराशि (₹ में) ज्ञात कीजिए।

Answer और ExplanationAnswer and explanation

Answer: (C) 214

कुल खर्च = 25 × 101 + 32 × 249 + 31 × 269 = 2525 + 7968 + 8339 = ₹18832
कुल सदस्य = 25 + 32 + 31 = 88
कुल औसत (Overall average) = 1883288 = ₹214
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कुल औसत ₹214 है।
Total spent = 25 × 101 + 32 × 249 + 31 × 269 = 2525 + 7968 + 8339 = ₹18832
Total members = 25 + 32 + 31 = 88
Overall average = 1883288 = ₹214
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The overall average is ₹214.

Source: RRB NTPC (Graduate) · 27 Mar 2026 · Shift 2। Solution: Prashant Sir, Vijayastra।Source: RRB NTPC (Graduate) · 27 Mar 2026 · Shift 2. Solution by Prashant Sir, from Vijayastra.