alleryजर a : b = 2 : 3 आनी b : c = 4 : 5 जाल्यार a : c इतलें आसता:
A2 : 5
B3 : 4
C8 : 15
D5 : 8
Answer & Solution
Correct answer: C. 8 : 15
1. दोनूय गुणोत्तरांनी b सारको केल्या उपरांतच तीं जोडूं येतात.
2. पयल्या गुणोत्तरांत b = 3 आनी दुसऱ्यांत b = 4. तांचो LCM = 12.
3. पयल्या गुणोत्तराक 4 न गुणल्यार a : b = 8 : 12.
4. दुसऱ्याक 3 न गुणल्यार b : c = 12 : 15.
5. a : b : c = 8 : 12 : 15, देखून a : c = 8 : 15. b समान करिनासतना भायल्या पदांक गुणल्यार चुकीचें 2 : 5 मेळटा.
स्रोत: syllabus Maths, Ch 7 Comparing Quantities, S7.1 Recalling Ratios and Percentages.
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