1.

Rahul invested X rupees for 3 years at a rate of y% interest. Shyam invested the same amount at the same rate for 12 years. Find the ratio of simple interest earned by Rahul to simple interest earned by Shyam.A. 1 ∶ 3B. 1 ∶ 4C. 2 ∶ 3D. 4 ∶ 11. A2. B3. D4. C

Answer» Correct Answer - Option 2 : B

Given 

Rahul invest certain amount for is 3 years 

Shyam invest same amount for is 12 years 

Formula Used 

Simple Interest = (Principal × time × Rate)/100

Calculation 

According to question,

⇒ Principal and rate is same 

Simple interest depend on time period, 

Ratio of time = Ratio of Simple interest 

Ratio of time (Rahul : Shyam)

⇒ 3 : 12 = 1 : 4 

Ratio of Simple interest (Rahul : Shyam)

⇒ 1 : 4 

∴ The Ratio of Simple interest  for Rahul : Shyam is 1 : 4 



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