Question

Chitra invested in a national saving certificate scheme. In the first year she
invested Rs 5000, in the second year Rs.7000, in the third year Rs.9000 and so
on. Find the total amount that she invested in 12 years.​

Answer 1

Answer:

Rs.48000

Step-by-step explanation:

Amount invested in 3 years = 5000 + 7000 + 9000

=21000

Amount invested in 12 years = 4 × 21000

= 48000 Rs.

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Answer 2

charitra invested money in 1 year = 5000

charitra invested money in 1 year = 5000charitra invested money in 2 year = 7000

charitra invested money in 3 year = 9000

charitra invested money in 4 year = ?

"

".

"

charitra invested money in 12 year = ?

Now,

1 year = 5000

2 year = 7000

"

"

so,

she increased money every year 2000

1 = 5000

2= 7000

3 = 9000

4 = 11000

5 = 13000

6 = 15000

7 = 17000

8 = 19000

9 = 21000

10 = 23000

11 = 25000

12 = 27000

therefore, the total amount that she invested in national saving certificate scheme per 12 months = 27,000

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