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1.
যদি a : b= 3 : 2 এবং b : c = 7 : 6 হয়, তবে c : a = কত?
- A. 2 : 6
- B. 2 : 6
- C. 2 : 6
- D. 2 : 6
Answer: Option D
Explanation:
a: b = 2:3 = (2×6):(3x6) = 12:18
এবং, b:c = 6:7 = (6x3):(7x3) = 18:21
a : c = 12:21
= 4:7
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