Question

Find the si on rs. 7200 at 8% per annum for 10 months. Select one:
a. Rs 480
b. Rs 560
c. Rs 600
d. Rs 700

Answer 1

Step-by-step explanation:

your question is wrong.... but it's answer is 5760

Answer 2

Given,

Rs. 7200 at 8% per annum for 10 months.

To Find,

The simple interest =?

Solution,

We have to find the simple interest on Rs. 7200 at 8% per annum for 10 months.

$Principal\: amount = Rs.\: 7200$

$Rate = 8$%

$Time = 10\: months$

Since the time is in months, we will convert it into years.

$12\: months = 1\: year$

$10\: months = \frac{1}{12} *10\: years$

                 $= \frac{5}{6} \: years$

Therefore, $Time = \frac{5}{6}\: years$

Now,

The formula for finding the simple interest is given as:

$Simple\: interest = \frac{Principal*Rate*Time}{100}$

Substituting the given values in the above formula,

$Simple\: interest = \frac{7200*8*5/6}{100}$

                         $= \frac{1200*8*5}{100}$

                         $= 12*8*5$

                         $= Rs.\: 480$

Hence, the simple interest is a. Rs. 480.