SSC CHSL Tier-1 previous year question
If a:b=3:7 and b:c=5:9, find a:b:c.
Asked in SSC CHSL Tier-1 (15 Nov 2025 Shift 1) · Quantitative Aptitude
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Correct answer: (A) 15:35:63
Scale b to LCM(7,5)=35: a:b=15:35 (×5), b:c=35:63 (×7). So a:b:c=15:35:63.
हिंदी में प्रश्न
यदि a:b=3:7 और b:c=5:9, तो a:b:c ज्ञात कीजिए।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (A) 15:35:63
b को LCM(7,5)=35 तक स्के ल करने पर: a:b=15:35, b:c=35:63। अतः a:b:c=15:35:63.
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