Question

Sunita walks to her school at a speed of 4 km per hour and takes 9 minutes to reach the school in time. One day she reached the school 10 minutes late. At what speed did she walk that day assuming that she did not start late from home.

Answer 1

The speed of sunita 4kmph

Time taken 9min=

60

9

​

=

20

3

​

hr

Distance travelled =4×

20

3

​

=

5

3

​

km

She was lete by 3min

Time taaken is 12min=

60

12

​

=

5

1

​

hr

Speed is given by

5

1

​

h

5

3

​

km

​

=3kmph

Answer 2

Answer:

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