Correct Answer: Option B
Work done = 5/8
Balance work = (1 – 5/8) = 3/8
Let the required number of days be x.
Then, 5/8 : 3/8 = :: 10 : x
=> 5/8 x x = 3/8 x 10
=> x = (3/8 x 10 x 8/5)
=> x = 6.
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