A takes 6 days less than the time taken by B to finish a piece of work is both A and B together can finish it in the four days find the time taken by B to finish the work
Answers
Answered by
2
Answer:
Step-by-step explanation:
Attachments:
Answered by
1
let B takes time taken for doing a work = x
A = x - 6 ....(1)
AB = 4
(x-6)(x) = 4
x^2 - 6x - 4 = 0
D = b^2 - 4ac
D = 52
x = -(-6) ±√52 / 2
x = 6 ± 2√13 / 2
x = 6 + 2√13 / 2 or x = 6 - 2√13 / 2
= 8√13 / 2 or = 4√13 / 2
= 4√13 or = 2√13
Similar questions