SSC CHSL Tier-1 previous year question
4 boys and 3 girls (7 students) spend an average of ₹120 each. Boys' average is ₹150. Find girls' average.
Asked in SSC CHSL Tier-1 (14 Nov 2025 Shift 2) · Quantitative Aptitude
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Correct answer: (C) ₹80
Total = 7×120 = 840. Boys' total = 4×150 = 600. Girls' total = 840−600 = 240; average = 240/3 = ₹80.
हिंदी में प्रश्न
4 लड़के और 3 लड़कियों ने औसतन ₹120 प्रति छात्र खर्च किए। लड़कों का औसत खर्च ₹150 था। लड़कियों का औसत खर्च ज्ञात कीजिए।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) ₹80
कु ल = 7×120 = 840। लड़कों का कु ल = 4×150 = 600। लड़कियों का कु ल = 840−600 = 240; औसत = 240/3 = ₹80.
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