1) What was the percentage increase in the monthly income of ]yoti in the year 2008 as compared to previous year? A) 50 B) 150 C) 160 D) 60 Answer: Option AExplanation:Joyti's income in 2008 = Rs 27000 Joyti's income in 2007 = Rs 18000 Increase percentage = $\frac{2700-1800}{18000}\times100$ = 50%