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1. a/b=4a, 2b=12 হলে a এর মান কত?

  • A. ৮
  • B. ৮
  • C. ৮
  • D. ৮

Answer: Option A

Explanation:

a/b = 4

a = 4b

এখন, a + 2b = 12

বা , 4b + 2b = 12

বা 6b = 12

∴b = 2

∴a = 4×2 = 8


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