Question

ID) Rs. 1000 is invested at 10 percent simple interest. Check at the end of every year if the total
interest amount is in AP. If this is an AP then find an interest amount after 20 years. For this
complete the following activity.
Simple interest -
R.
100
1000x1
Simple interest after 1 year *
+ Rs 100
Simple interest after 2 year =
1000x10Z
1001
OXOXO
100
Simple interest after 3 year =
= Rs. 300
iTEACH
SCHOOLS
According to this the simple interest for 4, 5, 6 years will be 400.
Respectively
From this d =
and a -
Amount of simple interest after 20 years
t=a* (n-1)d
* (20-1)
Amount of simple interest after 20 years is =​

Answer 1

I think answer is 19 . Because upar vali explanation ke hisab se 19 answer hona cha hiye .

Answer 2

Answer:

Solution. Hence, the total interest amount is in A.P. i.e. 100, 200, 300,.... Hence, the interest amount after 20 years is Rs 2000.

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Rs 1000 is invested at 10 percent.