Question

A businessman earns an income of Rs 1 on the first day of his business On every subsequent day he earns an income which is double of that made on the previous day On the 10th day of his business his income is (in Rs)

• A. 2048
• B. 1024
• C. 512
• D. 256

Answer 1

The correct option is C 512

Given the income of business man is double every day starting income is Rs 1

Then 1,2,4.................

Then this is geometric series first term is 1 and common is 2

Then 10th day income =$a{r}^{n-1}=1(2{)}^{10-1}=2^9=512$