On reducing my speed to 3 km/hr. I reach office 10 minutes late. I usually travel at 133% of this speed and reach early by the same margin. How far is my office?
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Answer:
let the distance is x km,
so from this question
(x÷30)-(x÷40)=15÷60
10x=300
x=30km
Step-by-step explanation:
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