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प्रश्न
Find a single machine that will do the same job as the given hook-up.
a (× 23) machine followed by (× 2–2) machine.
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उत्तर
(× 23) machine followed by (× 2–2) machine.
So, it produces `2 xx 2 xx 2 xx 1/2 xx 1/2 = 2^1`
Hence, (× 21) single machine can do the same job as the given hook-up.
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