Question

Mr Dhansukhalal deposited ₹ 10,000 in a bank at 10% simple interest.
Check at the end of every year if the total interest amount is in A.P. If this
is an A.P. find interest amount after 10 years.
TLF​

Answer 1

Answer:

Here Simple Interest = Principal × Time × Rate / 100

now first year interest = 10000 × 1 × 10 / 100

= 1000

second year = 10000 × 2 × 10 / 100

= 2000

Similarly in the third year = 3000

hence the interests are in an A.P.

Now we need the interest amount after ten years.

Hence this will be the total of all the interest rates of each year.

so the sum of all the interests = 10/2{ 2000 + 9000 }

= 55000 is the answer. But if you only need the interest in the 10th year then, it will be 10000.

Step-by-step explanation:

First we find out the interest rates for atleast 3 years and check whether they are in an A.P.

Now since they are in an A.P. they need the amount payable after 10 years as the interest.

so that will be the sum of all the amounts each year. Further if they only need the interest for the 10th year then you can find it out.

Answer 2

Answer:

Step-by-step explanation:

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