A girl travels from her house to school as depicted in the given graph. What is her speed between 8 to 12 minutes of her journey?

12.75 m per minute

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14.75m per minute

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18.75 m per minute

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16.75m per minute

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Solution

The correct option is C 18.75 m per minute
We know that,
$S p e e d = \frac{D i s t a n c e}{T i m e}$
From the graph, the distance travelled by the girl from C to D is 225 - 150 = 75 m
Time taken = 12 - 8 = 4 min
Therefore,
Speed $= \frac{75}{4} = 18.75$ m per minute

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Q. Meenakshee cycles to her school at an average speed of 12 km/hr and takes 20 minutes to reach her school. If she wants to reach her school in 12 minutes, then what should be her average speed?

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A girl travels from her house to school as depicted in the given graph. What is her speed between 8 to 12 minutes of her journey?

The correct option is C 18.75 m per minuteWe know that, Speed=DistanceTime From the graph, the distance travelled by the girl from C to D is 225 - 150 = 75 m Time taken = 12 - 8 = 4 min Therefore, Speed =754=18.75 m per minute

The correct option is C 18.75 m per minute
We know that,
$S p e e d = \frac{D i s t a n c e}{T i m e}$
From the graph, the distance travelled by the girl from C to D is 225 - 150 = 75 m
Time taken = 12 - 8 = 4 min
Therefore,
Speed $= \frac{75}{4} = 18.75$ m per minute