A child with his father got into bus already filled with 20 persons inside(including bus driver and conductor).

The child started counting the no. of persons in bus. He counted upto 22.

At the next stop ,7 persons got down from the bus.
The child revised his counting.He ended upto 15.

At the further next stop ,1 person got into the bus.
Child's counting reached to 16.

At second last stop, 10 persons got down from the bus.

now ,at last stop, The child asked his father "Papa, ar we all 7 people going to get down here itself."






Can you tell me me why did the child told 7 peoplewhen there was actully 6 people in the bus.


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just revise the no. of people getting in and getting out from the bus.
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Still you landed upto 6 only.
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you were absolutely right in your calculation.
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.The child always got ZERO marks in his mathematics exams.