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REAL NUMBERS: DRILL WORK FOR THE DAY 26/03/20 CLASS: 10TH
SUHAIB BAIG -GUHS KEREBILCHI- 2019
suhaibbaig.blogspot.com
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NAME
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SCHOOL:
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MOBILE NUMBER :
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TALUK
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1.
The smallest prime number is:
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(a) 0
(b) 1
(c) 2
(d) 3
2.
The sum of first five prime numbers is:
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(a) 26
(b) 15
(c) 39
(d) 28
3.
Total prime numbers between 1 and 100 are:
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(a) 31
(b) 25
(c) 22
(d) 20
4.
The unit’s digit obtained on simplifying 207×781×39×94 is:
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(a) 9
(b) 1
(c) 7
(d) 2
5.
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(a) integer
(b) Rational number
(c) Irrational number
(d) None of these
6.
The HCF and LCM of 6, 72 and 120 is:
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(a) 8, 360
(b) 6, 340
(c) 6, 360
(d) None of these
7.
The total number of even prime numbers is:
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(a) 0
(b) 1
(c) 2
(d) None of these
8.
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(a) Prime number
(b) An integer
(c) a rational number
(d) an irrational number
9.
If HCF and LCM of two numbers are 4 and 9696, then the product of two numbers is:
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(a) 9696
(b) 24242
(c) 38784
(d) 4848
10.
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(a)
(b) k
(c) 3k
(d) None of these
11.
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(a) 3
(b) 2
(c) 4
(d) 1
12. Given that LCM (91, 26) = 182 then, HCF (91, 26) is:
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(a) 13
(b) 26
(c) 7
(d) 9
13.
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(a) A prime number
(b) A composite number
(c) An even number
(d) None
14.
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(a) Any natural number
(b) An odd number
(c) Any even
(d) None
15.
HCF is always:
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(a) Multiple of LCM
(b) Factor of LCM
(c) Divisible by LCM
(d) Option a and c both
16. In Euclid’s division lemma where a=bq+r and a, b are positive integers, which one is correct:
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(a) 0<r≤b
(b) 0 ≤ r < b
(c) 0<r<b
(d) 0≤r≤b
17.
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(a) An integer
(b) Rational number
(c) Irrational number
(d) Option (a) and (c) both
18.
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(a) A rational number
(b) A natural number
(c) Equal to zero
(d) An irrational number
19.
The number given below which always ends with the digit 6 for all natural nos. n is:
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(a)
(b)
(c)
(d)
20.
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(a) A rational number
(b) A natural number
(c) Equal to zero
(d) An irrational number
21.
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(a) After four places of decimal
(b) After three places of decimal
(c) After two places of decimal
(d) After five places of decimal
22. The decimal expansion of
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(a) Terminating
(b) non-terminating
(c) non-terminating and repeating
(d) None of these
23.
If a is any integer divisible by b, for quotient q and remainder r, Euclid’s division algorithm is
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(a) a=bq-r
(b) b=aq+r
(c)a=bq+r
(d) a=qr+b
24.
Which of the following is a rational number having terminating decimal expansion?
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(a) 36/100
(b) 41/8
(c) 329/400
(d) All these
25.
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(a) 70
(b) 50
(c) 60
(d) 55
26.
LCM of 25, 35 and 105 is:
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(a) 555
(b) 565
(c) 575
(d) None of these
27.
If the HCF of 72 and 120 is 24, then their LCM is
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(A) 36
(B) 720
(C) 360
(D) 72
28.
If a and b are any two positive integers then HCF ( a, b ) × LCM ( a, b ) is equal to
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a) a + b
b) a – b
c) a × b
d) a ÷ b
29.If a=3q+r and a, b are positive integers, then the possible values of r
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a) 0, 1, 2, 3
b) 1, 2, 3,
c) 0, 1, 2
d) 0,1, 2, 3, 4
30.
The number .211 2111 21111 211111… is a:
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(a) terminating decimal
(b) non-terminating decimal which is non-repeating
(c) non-terminating repeating decimal
(d) None of these
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