Math, asked by kulwantkaur3863, 10 months ago

A and B can complete a piece of work in 30 days, B and C in 20 days while C and A in 15 days. If all of them work together, the time taken in completing the work will be :
A.
B.
C.
D.

Answers

Answered by lubna165
0

Step-by-step explanation:

Work done by (A + B) in 1 day 1/30

Work done by (B + C) in 1 day 1/20

Work done by (C + A) in 1 day 1/15

On adding,

Work done by 2(A + B + C) in 1 day 1/30+1/15+1/20=3/20

∴ Work done by (A + B + C) in 1 day 3/40

∴ (A + B + C) will do the work in 40/3 days =13¹/³

I hope it's helpful to you ,please mark me as brainliest.

Answered by kanchanb2510
9

see in this photo how i make this sum and if you understand give one like

HOPE YOU UNDERSTAND

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