Question

At the certain rate of interest the interest after 4 years on 5000 rupees principal is 1200 rupees . what would be the interest on 1500 rupees at the same rate of interest for same period

Answer 1

Answer:

 interest = Rs 360

Step-by-step explanation:

Principal p = Rs 5000

time period t = 4 years

interest I    = Rs 1200

let,

 interest rate = r

Formula= I= p*r*t

putting values in above:

          1200 = 5000*r*4

             r = 1200/20000

             r = 0.06 or 6%

NOW

we have to find   I=interest

as

                 i = p*r*t

so

         interest = 1500*0.06*4

         interest = Rs 360

Answer 2

Answer:

Rs 360

Step-by-step explanation:

Interest for 4 years = Rs 1200

Interest for 1 year = 1200 ÷ 4 = Rs 300

Find the interest rate:

Interest rate = 300/5000 x 100 = 6%

Find the interest for Rs 1500:

1 year = 6% of 1500 = Rs 90

4 years = 90 x 4 = Rs 360

Answer: Rs 360