Question
20 men or 40 women can complete a piece of work in 24
days. A man and a woman together complete the work and receive a total wage of Rs. 12,000. Find the difference between the wages received by them.Solution
ATQ, Let the efficiency of a man and a woman be 'M' and 'W' units/day respectively. We have, 20M × 24 = 40W × 24 So, 20M = 40W Or, (M/W) = (40/20) = 2 Required difference = {(2 - 1) /(2 + 1) } × 12000 = (1/3) × 12000 = Rs. 4,000
For 3x² − 10x − 8 = 0, find (1/α + 1/β).
In the question, two equations I and II are given. You have to solve both the equations to establish the correct relation between x and y.
I. 3x<...
I. 2x2 - 9 x + 9 = 0Â
II. 2y2 - 7 y + 3 = 0
I. 8x² - 74x + 165 = 0
II. 15y² - 38y + 24 = 0
I. 3x2 - 16x - 12 = 0
II. 2y2 + 11y + 9 = 0
In the question, two equations I and II are given. You have to solve both the equations to establish the correct relation between 'p' and 'q' and choose...
For what values of k does the equation x² – (k+1)x + k = 0 have two distinct real roots, both greater than 1?
l. x2 - 16x + 64 = 0
II. y2Â = 64
I. 66x² - 49x + 9 = 0
II. 46y² - 37y - 30 = 0
I. 3p² - 17p + 22 = 0
II. 5q² - 21q + 22 = 0
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