Math, asked by jayadevpillai, 1 year ago

A and Bcan do work in 72 days. B and C in 120 days. A and C can do in 90 days.if A B and C work together how much work finished in 3 days​


archanabanjare: Please mark as brainliest

Answers

Answered by archanabanjare
1

Time taken by A and B = 72 days

Work done by A and B =1/72

Time taken by B and C = 120 days

Work done by B and C = 1/120

Time taken by C and A = 90 days

Work done by C and A = 1/90

Work done by A + B + B + C + C + A

Work done by 2A +2B +2C

= 2(1/72+1/120+1/90)

=2(5+4+3/360)

=2(12/360)

=2 × 1/30

= 2/30

= 1/15

Time taken by A + B + C = 15 days

Hope it helps you.

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