Question

swiftly .....,,.......?

Answer 1

I think The answer will be option c. 18 days
bcoz everyone is taking 18 days for making their nest

Answer 2

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Your Answer : (C ) 18 days

since, it is not mentioned there that they work together for 18 days.

one bird will make 1 ghosla for herself. she dont need more , a bird takes time to make 1 ghosla ,

logically , each (1 ) bird may takes 18 days to make 1 ghosla.



thus , each bird worked on same days and for herself not for others.

therefore,

time taken by each bird to make1 ghosla = 18 days




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