Question
A, B, C can do a piece of work in 11 days, 20 days, and
22 days respectively. If B works daily and is supported by A and C on alternate days beginning with A, then in how many days will the work be finished?Solution
ABC 112022 220 201110 working fashion = (A +B, C + B) 2 days = 31 + 21 = 52 units 8 days = 208 units Remaining work =220-208=12unit 9 days = 12/31 => 220units Total time =8+(12/31) days=8 +(12/31 days
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