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In a 4 hours journey by a car, it travelled with 50 kmph constant speed for first 2 hours and with 37.5 kmph constant speed for the next two hours. Then what is the total distance travelled by the car in that total 4 hours journey ?

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1,86,000 m

1,75,000 m

175 m

186 km

answer is B.

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Detailed Solution

Distance in first two hour $= 50 \times 2 = 100 km$
Distance in next two hour $= 37.5 \times 2 = 75 km$
Total distance $= 100 + 75 = 175 km$
$= 175 \times 10^{3} = 1, 75, 000 m$

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