Sachin invested in a national saving certificate scheme. In the 1st year, he invested `₹5000`, in 2nd year `₹7000`, in 3rd year `₹9000` and so on. Find the total amount he invested in 12 years.

Sachin invested some amount in National Savings certificates in a specific way. In the first year, he invested Rs 4000, in the second year Rs 6000, in the third year Rs 8000 and so on for 12 years . Find the total amount he invested in 12 years.

Mr.Shaikh invested ₹40,000 in a business.At the end of the year,he received ₹52,000.Find his profit per cent.

Shraddha depossied Rs. 8000 in a bank which pays annual interest rate and 8%. She kept it with the bank for 10 years with comound interest. Find the total amount. She will received after 10 years. [given (1.08)^10 = 2.1575 ]

Mrs.Reshma Joshi invested ₹1,20,000 in a fixed deposit and in shares in the ratio 3:2.How much amount did she invest in each of the schemes?

Shri Lalbhai invested Rs 4,00,000 in some industry. After 1 year he received Rs 5,20,000 from the industry. Putting aside the original investment, he invested his gains in mutual fine and shares ?

A person deposits ₹x in savings bank account at the rate of 5% per annum and ₹y in fixed deposit at 10% per annum.At the end of the year,he gets ₹400 as total interest.If he deposits ₹y in savings bank account and ₹x in fixed deposit,he would get₹350 as total interest.Find the total amount he deposited.