Question

A sum of 5000 is invested at 8% simple interest
per annum. Calculate the interest at the end of each
year. Do these interests form an AP? Find the
interest at the end of 30th year.​

Answer 1

Answer:

12000

Step-by-step explanation:

Simple interest in first year=PRT/100=5000*8*1/100=400

Interest in second year=5000*8*2/100=800

Interest in third year=5000*8*3/100=1200

Interests =400,800,1200,..... are forming AP.

Here,d=400,a=400

Therefore, Interest at the end of 30th year=400+29*400

=400+11600

=12000

Hope U got it

Answer 2

Answer:

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