Question
Monthly income of Ajay and Bhanu is Rs. (x + 700) and
Rs. x, respectively. If monthly income of Ajay is increased by 20% while that of Bhanu is decreased by 25% then the ratio of their respective income becomes 9:5, respectively. Find the monthly income of Ajay.Solution
According to question; {1.20 × (x + 700)}/(0.75 × x) = 9/5 => 8x + 5600 = 9x So, x = 5600 So, monthly income of Ajay = x + 700 = 5600 + 700 = Rs. 6300
- Suppose both the roots of q² + kq + 49 = 0 are real and equal, then determine the value of 'k'.
I. 84x² - 167x - 55 = 0
II. 247y² + 210y + 27 = 0
l). 2p² + 12p + 18 = 0
ll). 3q² + 13q + 12 = 0
I. 2x² - 9x + 10 = 0
II. 3y² + 11y + 6 = 0
I. 6x2 - 47x + 77 =0
II. 6y2 - 35y + 49 = 0
I. 12a2 – 55a + 63 = 0
II. 8b2 - 50 b + 77 = 0
...I. 2y2 – 19y + 35 = 0
II. 4x2 – 16x + 15 = 0
I. 5x² - 24 x + 28 = 0
II. 4y² - 8 y - 12= 0
In each of these questions, two equations (I) and (II) are given.You have to solve both the equations and give answer
I. x2 – ...
I.8(x+3)+ 8(-x)=72
II. 5(y+5)+ 5(-x)=150