Question

If an amount is 3 times of it after 5 years in simple interest, then the rate of interest per annum is (A) 20% (B) 40% (C) 25% (D) none 1​

Answer 1

Answer:

anething answer a

Step-by-step explanation:

anething answer A

Answer 2

Answer:

$40$%

Step-by-step explanation:

• As per the data given in the question, we need to find the rate of interest

• Let the Principal be $x$.

• Then, the amount after $5$ years will be $3x$

• Simple Interest $=3x-x=2x$

• Formula for simple interest $I=\frac{PTR}{100}$

$R=\frac{I\times100}{P\times T}$

• On substituting the values in the above formula, we get

$R=\frac{2x\times100}{x\times5}$

$R=40$%

Hence, the rate of interest is $40$%.