Question
Anmol can do a piece of work in 30 days, Bineet can
complete double the work in 90 days and Chintu can do the work in 60 days. If all of them jointly gets Rs.2600. then, what will be the money earned by Anmol.Solution
ATQ, we can say that Time taken by Anmol = 30 days Time taken by Bineet = 45 days (Since, Bineet is working double in 90 days) Time taken by Chintu = 60 days Let the total work be done by them is 180 units. Anmol’s one day work = (180/30) = 6 units Bineet’s one day work = (180/45) = 4 units Chintu’s one day work =(180/60) = 3 units Hence, the Amount earned by Anmol is = (2600/13) x 6 = Rs.1200
I. 15y2 + 4y – 4 = 0
II. 15x2 + x – 6 = 0
- For what value of a does the quadratic equation x² + ax + 81 = 0 have real and identical roots?
I. 15b2 + 26b + 8 = 0
II. 20a2 + 7a - 6 = 0
I. x2 – 12x + 32 = 0
II. y2 + y - 20 = 0
I. 6y2 - 17y + 12 = 0
II. 15x2 - 38x + 24 = 0
I. 4x2 – 53x – 105 = 0
II. 3y2 – 25y + 48 = 0
I. 9/(4 )p + 7/8p = 21/12
II. 7/5p = 9/10q + 1/4
I. 20y² - 13y + 2 = 0
II. 6x² - 25x + 14 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: 3x² + 6x - 9 = 0
Equation 2: 2y² - 16y + 32 = 0
Quantity I: A vessel contains a mixture of milk and water in the ratio of 7 : 5. If 9 litre of mixture is sold and replaced by same amount of water then...
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