a/b = 4, a + 2b = 12 হলে a এর মান কত?
Solution
Correct Answer: Option C
দেওয়া আছে, a/b = 4
বা, a = 4b
এখন, a+2b = 12
বা , 4b+2b = 12
বা , 6b = 12
∴ b = 2
∴ a = 4×2 = 8
বা, a = 4b
এখন, a+2b = 12
বা , 4b+2b = 12
বা , 6b = 12
∴ b = 2
∴ a = 4×2 = 8
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