Question

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(b) Ms Chatterjee deposits 100 per month in a cumulative deposit account for a period of 5 years.
After the end of the period she will receive 7,220. (Consider the interest rate to be simple.)
(i) Find the rate of interest per annum.
(ii) Find the total interest that Ms Chatterjee will earn.
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Answer 1

Step-by-step explanation:

I don't know sorry for that