Question

'A' completes work in 10 days,while 'B' and 'C' complete it in 12 and 15 days respectively.In how many days A,B and C together complete the work?
a.3 b.6 c.4 d.5​

Answer 1

Answer:

so,

here is your answer ➡️➡️➡️. 4 days

Step-by-step explanation:

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Answer 2

Answer: 4days

Step-by-step explanation:

Part completed by A in 1 day=1/10

Part completed by B in 1 day=1/12

Part completed by C in 1 day=1/15

Part completed by all 3 in 1 day=1/10+1/12+1/15

=6+5+4/60

=15/60

=1/4

Time taken to complete=1÷1/4

=1*4

=4 days

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