Question

person invested money in an account and earns interest of ₹100 every month. Which equation shows the total interest, , the person will earn after months and how much interest will the person earn in 1 year?



1) = 12;144
2) = 12 + 100;154
3) = 100; 120
4) = 100;1200​

Answer 1

Step 1: Given data

Interest for one month $=$ ₹$100$

Time$=1\ year=12 \ months$

Step 2: Calculating the interest for $12\ months$

Total interest a person will earn in a year =$12\times 100=1200$

Thus, the total interest is ₹$100$ and the interest the person earns in a year is ₹$1200$.

Hence, option (4) is correct.

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Answer 2

Given data ,

1. Interest for one month = ₹100
2. Time= 1 year=12 months

to find : Calculating the interest for 12 months

solution :

Total interest a person will earn in a year 12×100=1200

Thus, the total interest is ₹100 and the interest the person earns in a year is ₹1200 .

Hence, option (4) 100 ; 1200 is correct.

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