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1. If two non-zero positive integers p and q are such that p = 4q and p < 8, then q =?
- A. 1
- B. 1
- C. 1
- D. 1
Answer: Option A
Explanation:
ধরি, এর বর্তমান বয়স x বছর ∴∴ A " " " (x + 9 ) " ∴∴ (x + 19 + 10) = 2(x - 10 ) ⇒⇒ x + 19 = 2x - 20 ⇒⇒ 2x - x = 20 + 19 ∴∴ x = 39
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