Mental Maths Class 6 Understanding Elementary Shapes

Asked by SAGARIKA · Delhi Public School Gandhidham

If you are trapped in a room with some amount of cows for 1 hour.
And you counted that there were 80 cows, then took out of the room.
Now you are supposed to count the total number of legs when you were in the room.

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Answer: C. 322

Cows have four legs.
80×4=320.
Since, we were also in the room and we have two legs so that would also count.
320+2=322.

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