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Correct Answer: (A)
27’+9’-3’+1’
Explanation: combinations can be made by only three series of angle gauges. minutes series is with 1’, 3’, 9’, 27’ angle gauges.
Explanation by: Mr. Dubey
combinations can be made by only three series of angle gauges. minutes series is with 1’, 3’, 9’, 27’ angle gauges.
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