📊 Math
Q. A principal becomes 1.5 times itself in 4 years under simple interest. What is the yearly rate?
  • (A) 10%
  • (B) 12.5%
  • (C) 15%
  • (D) 8%
✅ Correct Answer: (B) 12.5%

Explanation: If A = 1.5P then SI = 0.5P = P×R×4/100 ⇒ 0.5 = 4R/100 ⇒ R = (0.5×100)/4 = 50/4 = 12.5%. Others are incorrect.

Explanation by: Mr. Dubey
If A = 1.5P then SI = 0.5P = P×R×4/100 ⇒ 0.5 = 4R/100 ⇒ R = (0.5×100)/4 = 50/4 = 12.5%. Others are incorrect.

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