Question
Raj saves Rs. 3000 more if he spends 65% of his income
instead of 85%. Find the savings of Sanjay whose income is 20% more than that of Raj, and spends 85% of his income.ÂSolution
Let, the income of Raj be Rs. x According to the question, 0.85x – 0.65x = 3000 Or, 0.20x = 3000 Or, x = 3000/0.20 = Rs. 15000 Savings of Sumit = 0.15 × 1.20 × 15000 = Rs. 2700
More Percentage Questions
I. x2 – 12x + 32 = 0
II. y2 + y - 20 = 0
I. x² - 33x + 270 = 0
II. y² - 41y + 414 = 0
What is the nature of the roots of the quadratic equation x² – 5x + 7 = 0 ?Â
I. (y – 5)2 – 9 = 0
II. x2 – 3x + 2 = 0
I. Â 3y2Â + 13y - 16 = 0
II. 3x2 – 13x + 14 = 0
I: x² - 10x + 21 = 0 Â
II: 4y² - 16y + 15 = 0
I. 6 y² + 11 y – 7= 0
II. 21 x² + 5 x – 6 = 0
I. 2x² + 15 x - 27 = 0
II. 3 y² + 25 y - 18 = 0
I. 8x2 - 2x – 15 = 0
II. 12y2 - 17y – 40 = 0
I. 15b2 + 26b + 8 = 0
II. 20a2 + 7a - 6 = 0
