InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
If the expenditure in 2000 is 25% more than expenditure in 1997, then the income in 1997 is what percent less than the income in 2000? |
| Answer» Let the expenditure is 1997 be x. Then, expenditure in 2000 = x + (25% of x) = 5 x. 4 Also, let the incomes in 1997 and 2000 be I1 and I2 respectively. Then, for the year 1997, we have: 45 = I1 - x x 100 45 = I1 -1 I1 = 145x = 1.45x. x 100 x 100 Also, for year 2000, we have: 60 = I2 - 5x 4 x 100 60 = 4I2 - 1 I2 = 160 x 5x = 2x. 5x 4 100 5x 100 4 Difference between the two income = (2x - 1.45x) = 0.55x. Percentage by which I1 is less than I2 = 0.55x x 100 % = 27.5%. 2x | |