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