Ritesh and Co. generated revenue of Rs. 1,600 in 2006. This was 12.5% of its gross revenue. In 2007, the gross revenue grew by Rs. 2,500. What is the percentage increase in the revenue in 2007?
Choices
A) 12.5%
B) 19.53%
C) 25%
D) 50%
E) None of these
Explanation :   Given, Ritesh and Co. generated revenue of Rs. 1,600 in 2006 and that this was 12.5% of the gross revenue.   Hence, if 1600 is 12.5% of the revenue, then 100% (gross revenue) is:   =&gt;(100/12.5)×1600.   =&gt;12,800.   Hence, the total revenue by end of 2007 is Rs. 12,800. In 2006, revenue grew by Rs. 2500. This is a growth of:   =&gt;(2500/12800)×100.   =&gt;19.53%.   Answer : 19.53%
<result>B</result>
Ritesh and Co. generated revenue of Rs. 1,600 in 2006. This was 12.5% of its gross revenue. In 2007, the gross revenue grew by Rs. 2,500. What is the percentage increase in the revenue in 2007?