By walking at $\frac{3}{4}$ of his usual speed , a man reaches his office 20 minutes later than his usual time.The usual time taken by him to reach his office is1). 75 min.2). 60 min.3). 40 min.4). 30 min.

By walking at $\frac{3}{4}$ of his usual speed , a man reaches his off

1.	By walking at $\frac{3}{4}$ of his usual speed , a man reaches his office 20 minutes later than his usual time.The usual time taken by him to reach his office is1). 75 min.2). 60 min.3). 40 min.4). 30 min.
Answer» I THINK 60 MIN. is RIGHT

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By walking at $\frac{3}{4}$ of his usual speed , a man reaches his office 20 minutes later than his usual time.The usual time taken by him to reach his office is1). 75 min.2). 60 min.3). 40 min.4). 30 min.

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