Simplify a7×a3a7×a3 for a≠0a=0 A a21a21 B a4a4 C a10a10 D a73a37 Explanation When multiplying powers with the same base,
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Chapter 4: Rational, Irrational and Real Numbers (Set-5)
If x=0.135‾x=0.135, what is xx in simplest fraction form A 15/99 B 135/1000 C 5/37 D 27/199 Explanation Let x=0.135135…x=0.135135….
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Which statement is always true A Rational ⇒ nonrepeating B Irrational ⇒ repeating C Terminating ⇒ rational D Repeating ⇒
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Which number is irrational A 0.125 B 17/5 C −9 D √6 Explanation 0.125 is terminating, 17/5 is a fraction,
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Which number is rational A −11/4 B √5 C π D √7 Explanation A rational number can be written as
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Which is a rational number A √2 B 7/9 C √3 D π Explanation A rational number can be written
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How many primes are there between 50 and 70? A 3 B 5 C 4 D 6 Explanation Check each
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Which of the following is a prime number? A 97 B 91 C 93 D 95 Explanation To check primality,
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How many prime numbers are there from 1 to 10? A 3 B 5 C 6 D 4 Explanation Prime
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Which number is a prime number? A 27 B 33 C 29 D 35 Explanation A prime has exactly two
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