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Find out how many times, a repeater machine could perform the same amount of work as a $× 18$ single machine.

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123

124

12

18

answer is A.

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Detailed Solution

We have given a repeater machine that could perform the same amount of work as a

× 18

single machine.
Single machine work

= 18 = 1 × 1 × 1 2 × 2 × 2 = 1323 .

Apply

a b m = a m b m

in the above equation, and we get,
Single machine work

= 123 .

Hence,

times a repeater machine can do the same work as a

× 18

single machine.
Hence, option (1) is correct.

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