Verbal Reasoning - Arithmetic Reasoning - Discussion
Discussion Forum : Arithmetic Reasoning - Section 2 (Q.No. 25)
25.
An enterprising businessman earns an income of Re. 1 on the first day of his business. On every subsequent day, he earns an income which is just double of that made on the previous day. One the 10th day of business, his income is
Answer: Option
Explanation:
Income on the first day = Re. 1.
Income on the 2nd day = Rs. (1x2) = Rs. 21.
Income on the 3rd day = Rs. (21 x 2) = Rs. 22 and so on. Thus, Income on the rath day = Rs. 2n-1.
Therefore Income on the 10th day = Rs. 29.
Discussion:
1 comments Page 1 of 1.
Sakshi said:
5 years ago
How it can be 2^9 (an even no.)?
When Rs.1(on the first day) is added to Rs.2^n (on the rest nine days). It should be an odd number.
When Rs.1(on the first day) is added to Rs.2^n (on the rest nine days). It should be an odd number.
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