Walking $$\frac{3}{4}$$ of his normal speed, Rabi is 16 minutes late in reaching his office. The usual time taken by him to cover the distance between his home and office:
a) 48 min.
b) 60 min.
c) 42 min.
d) 62 min.
Answer: a
Explanation:
$$\frac{4}{3}$$ of usual time = Usual time + 16 minutes;
Hence, $$\frac{1}{3}{\text{rd}}$$ of usual time = 16 minutes;
Usual time = 16 × 3 = 48 minutes.
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