যদি A : B = 2 : 3 B : C = 4 : 5, C : D = 6 : 7 হয়, তবে A : D কত?
Solution
Correct Answer: Option B
A : D = (A : B) × (B : C) × (C : D)
= (A/B) × (B/C) × (C/D)
= (2/3) × (4/5) × (6/7)
= 48/105
= 16/35
= 16 : 35
= (A/B) × (B/C) × (C/D)
= (2/3) × (4/5) × (6/7)
= 48/105
= 16/35
= 16 : 35
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