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Class 10
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Maths
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Real Numbers
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Easy Questions
Real Numbers
Maths
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If
$p$
is prime, then
$p $
is irrational. So
$7 $
is:
A
a rational number
B
an irrational number
C
not a real number
D
terminating decimal
Easy
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>
Which of the following are non-terminating numbers?
A
$32 $
B
$157 $
C
$52 $
D
$135 $
Easy
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>
Let
$x=qp $
be a rational number, such that the prime factorization of
$q$
is of the form
$2_{n}5_{m}$
, where
$n,m$
are non-negative integers. Then
$x$
has a decimal expansion which terminates.
A
True
B
False
C
Neither
D
Either
Easy
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>
Which of the following will have a terminating decimal expansion?
A
$21077 $
B
$3023 $
C
$441125 $
D
$823 $
Easy
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>
$3+25 $
a rational number.
A
True
B
False
Easy
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>
State true or false:
$2 1 $
is an irrational number.
A
True
B
False
Easy
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>
The number of possible pairs of number, whose product is 5400 and the HCF is 30 is
A
1
B
2
C
3
D
4
Easy
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>
$5035 $
has a non-terminating decimal expansion.
A
True
B
False
Easy
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>
According to Euclid's division algorithm, HCF of any two positive integers
$a$
and
$b$
with
$a>b$
is obtained by applying Euclid's division lemma to
$a$
and
$b$
to find
$q$
and
$r$
such that
$a=bq+r$
, where
$r$
must satisfy
A
$1<r<b$
B
$0<r<b$
C
$0≤r<b$
D
$0<r≤b$
Easy
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>
Assertion
The denominator of
$34.12345$
is of the form
$2_{n}×5_{m}$
, where
$m,n$
are non-negative integers.
Reason
$34.12345$
is a terminating decimal fraction.
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
B
Both Assertion and Reason are correct, but Reason is not the correct explanation for Assertion.
C
Assertion is correct, but Reason is incorrect.
D
Assertion is incorrect, but Reason is correct.
Easy
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>