Question

A and completes a work in 10 days and 20 days.If they work together then how many days they will take ?​

Answer 1

Answer:

Question mistake A and B,

Step-by-step explanation:

Time taken by A to the work = 10days

Time taken by B to complete the work = 20days

A's 1day work = 1/10

B's 1day work =1/20

(a+b) 1day work =1/10+1/20

=2+3/20

=5/20 = 4days

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