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JEE MATHEMATICS MCQ: PERMUTATIONS

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Application +4 | -1

Let

A=\{x \mid x

is a prime number and

x < 30\}

. The number of dif- ferent rational numbers whose numerator and denominator belong to

A

is

View answer and explanation

Correct option: C

91

Option C (91) is correct because it counts the number of distinct rational numbers formed from the given set of prime numbers.

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