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1. 3A = 2B; 3B = 5C এবং 4C = 5D হলে, A:B:C:D = কত?
- A. 50:75:36:45
- B. 50:75:36:45
- C. 50:75:36:45
- D. 50:75:36:45
Answer: Option C
Explanation:
B=3/2 A
C=3/5B=9/10A
D=4/5C=18/25A
A : B : C : D
= 50 : 50×3/2 : 50×9/10 : 50 × 18/ 25
=50:75:45:36
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