Q165 of 196 Page 249

Find two repeater machines that will do the same work as a ( × 81) machine.

Let W1 be the work done by firstmachine.


Let W2 be the work done by second machine.


Work done by both the machines is Wt = W1xW2


Wt = 81 = 9x9


9x9 = 3x3x3x3


W1xW2 = 32x32


W1 = W2 = 32


Therefore, the two repeater machines are (x32) and (x32).


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