Correct Answer: Option B
Ratio of times taken by Sakib and Tanya = 125:100 = 5 : 4.
Suppose Tanya takes x days to do the work.
5 : 4 :: 20 : x
=> x = (4 x 20)/5
=> x = 16 days.
Hence, Tanya takes 16 days to complete the work.
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