SSC MTS practice question
The present average age of a group of cousins of 8 members is 36 years. What was the total age of all the members 6 years ago?
From a SSC MTS Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (C) 240 years
Present total age of 8 members = 8 × 36 = 288 years. 6 years ago, each member was 6 years younger, so total age was less by 8 × 6 = 48 years. Total age 6 years ago = 288 − 48 = 240 years.
हिंदी में प्रश्न
एक चचेरे भाई-बहनों के समूह के 8 सदस्यों की वर्तमान औसत आयु 36 वर्ष है। 6 वर्ष पहले सभी सदस्यों की कुल आयु कितनी थी?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 240 वर्ष
8 सदस्यों की वर्तमान कुल आयु = 8 × 36 = 288 वर्ष। 6 वर्ष पहले प्रत्येक सदस्य 6 वर्ष छोटा था, इसलिए कुल आयु 8 × 6 = 48 वर्ष कम थी। 6 वर्ष पहले कुल आयु = 288 − 48 = 240 वर्ष।
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