Question

p= 12000 a= 16500 t= 2.5 yrs rate percent per annum SI will be

Answer 1

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R=15%

Answer 2

Answer:

15%

Step-by-step explanation:

Concept:

While solving questions related to Simple Interest we should know about the terms Principle(P), Rate(R), Time(T).

Principle is the amount of money initially.

Rate is Interest amount to the Principle for a time period.

Time is the time given to pay the amount.

$Simple Interest (SI) = Principle * Time * Rate / 100\\SI = PTR/100$

Solution:

Given, Principle P = 12000

Time , T  = 2.5 years

a is the amount of money needed to pay after 2.5 years which is 16500.

So, SI would be a - P because difference between initial amount and total amount to be paid gives us simple interest.

Therefore, SI = a - P = 16500 - 12000 = 4500

Now, as

$SI = PTR /100\\R = SI * 100 / PT\\R = 4500 * 100 / 12000 * 2.5\\R = 450000/300000\\R = 15 %$

So, Rate percent = 15%

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