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Subject :IMO    Class : Class 5

A plumber has long pipe. He divides it into 3 parts. The top and the bottom part measures meach. Find the length of the middle part of the pipe.

A
B
C
D


Ans 1:

Class : Class 8
it is very easy'

Ans 2:

Class : Class 5

Ans 3:

Class : Class 5
I can't understand.Please help

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