SSC CHSL Tier-1 previous year question
Average marks of 30 students is 55. If a student who scored 40 is replaced by one who scored 70, find the new average.
Asked in SSC CHSL Tier-1 (12 Nov 2025 Shift 2) · Quantitative Aptitude
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Correct answer: (A) 56
Total = 1650. New total = 1650 − 40 + 70 = 1680. New average = 1680/30 = 56.
हिंदी में प्रश्न
30 छात्रों के औसत अंक 55 हैं। 40 अंक वाले छात्र को 70 अंक वाले से बदलने पर नया औसत ज्ञात कीजिए।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (A) 56
कु ल = 1650। नया कु ल = 1650 − 40 + 70 = 1680। नया औसत = 1680/30 = 56.
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