Question

find tge time when simple interest on Rs 3500 at 7°/• per annum is rs 490​

Answer 1

Answer:

2

Step-by-step explanation:

interest=  

100

p∗r∗t

​  

 

p = principal amount , r = rate , t = time

interest=  

100

3500∗7∗2

​  

 

interest = RS. 490

Answer 2

Answer:

Given:-

Find the time when simple interest on ₹3,500 at 7% per annum is ₹490.

To Find:-

The Time.

Note:-

●》Here, Principal is the amount at which interest is calculated; Rate is the interest for fixed period on every amount; Interest is the extra money which the lender gets from a borrower as Simple interest and interest are same.

●》Time = $\frac{Interest × 100}{Principal × Time}$.

●》When rate is in per annum, the time will be in years.

Solution:-

[ Note first point ]

$\huge\red{Principal = ₹3,500; Rate = 7}$% $\huge\red{per \ \ annum}$ $\huge\red{\ \ Interest = ₹490}$

$\huge\red{\ \ \ \ Time = ?}$

☆ According to note second and third point ( rate is in per annum )~

▪︎$Time ( in \ \ years ) = \frac{Interest × 100}{Principal × Rate}$

▪︎$Time ( in \ \ years ) = \frac{490 × 100}{3,500 × 7}$

▪︎$Time ( in \ \ years ) = \frac{49,000}{24,500}$

☆ After dividing~

▪︎$Time ( in \ \ years ) = 2$

$\huge\pink{Time = 2 \ \ years}$

Answer:-

Hence, the time = 2 years.

:)