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Mohan can move his lawn in x hours after 2 hour it begins to rain. The unmoved part of the lawn is?

2/x
(2 - x)/2
x/2
(x - 2)/x

Correct Answer: (x - 2)/x

Explanation:

∵ Mohan moves the whole lawn in x hours.
⇒ mohan moves in 2 hours = 2/x part of the lawn.
∴ Unmoved part = 1 - 2/x = (x - 2)/ x part

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