Question 64

Gopal covers 100 km. He travels at a speed of 60 kmph for the first 40 km and the rest of the distance at 60 kmph. What is his average speed in kmph?

Solution

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Time taken for first 40 km = $$\frac{40}{60}=0.66$$ hr

Time taken for 60 km = $$\frac{60}{60}=1$$ hr

Average speed = $$\frac{Total\ dis\tan ce}{Total\ time}=\frac{100}{1.66}=60\ kmph$$

And also there is no change in speed so average speed will be same 60 kmph.

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