Question

4 men and 6 boys can finish a piece of work in 20 days while 3 men and 4 boys can
finish in 28 days. Find the time taken by one man alone and by one boy alone to
finish the work.
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Answer 1

Answer:

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Answer 2

Step-by-step explanation:

4x + 6y = 20 -----(1)

3x + 4y = 28 -----(2)

(1) x 3

(2) x 4

we get,

12x + 18y = 60 ----- (3)

12x + 16y = 112 ----(4)

(4) - (3)

-2y = 52

y = -26

substitutuing y = - 26 in (3)

12x + 18(-26) = 60

12x - 468 = 60

12x = 528

x = 528/12 = 44

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