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Two finite sets have m and n elements....

Two finite sets have m and n elements. The number of subsets of the first set is 112 more than that of the second set. The values of m and n are, respectively.

A

4,7

B

7,4

C

4,4

D

7,7

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The correct Answer is:
B
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MODERN PUBLICATION-SETS -OBJECTIVE TYPE QUESTIONS (A )(MULTIPLE CHOICE QUESTIONS)
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