WorksheetsREAL NUMBERS
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
The set of __________ contains all the numbers that are rational and irrational.
a)
integers
b)
whole numbers
c)
real numbers
d)
natural numbers
2.
√5 - 3 -2 is ______
a)
a rational number
b)
a natural number
c)
equal to zero
d)
an irrational number
3.
Say 'TRUE' or 'FALSE'
101 is a composite number
101 is a composite number
a)
TRUE
b)
FALSE
4.
Say 'TRUE' or 'FALSE'
π is not a rational number
π is not a rational number
a)
TRUE
b)
FALSE
5.
The number
0.211211121111211111..... is a _____
0.211211121111211111..... is a _____
a)
terminating decimal
b)
non-terminating repeating decimal
c)
non-terminating and non-repeating decimal
d)
none of the above
6.
Euclid's division Lemma states that for any two positive integers 'a' and 'b', there exist unique integers 'q' and 'r' such that a = bq +rm where 'r' must satisfy____
a)
1 < r < b
b)
0 < r < b
c)
0≤ r < b
d)
0 < r ≤ b
7.
HCF of 48 and 120 is ______
a)
8
b)
12
c)
24
d)
18
8.
Classify the following number:
1.01011011101111....
1.01011011101111....
a)
Rational
b)
Irrational
9.
3 is considered a...
a)
Whole number
b)
Integer
c)
Irrational Number
d)
Rational Number
10.
The following Real Number Venn diagram correctly shows each set and subset:
a)
True
b)
False
11.
Which of the following is composite number
a)
2
b)
9
c)
5
d)
11
12.
Which of the following are coprimes
a)
4,6
b)
8,9
c)
5,10
d)
10,12
13.
When divisor is 4 then possible remainders are-------'
a)
3,4,5
b)
1,2,3
c)
0,1,2,3
d)
Greater than 5
14.
as per euclid division lemma when divisor is 3 then possible integers are____
a)
3q,3q+1,3q+2
b)
3q+1,3q+2,3q+3
c)
3,4,5,6
d)
None
15.
What will be the least possible number of the planks, if three pieces of timber 42 m, 49 m and 63 m long have to be divided into planks of the same length?
a)
20
b)
21
c)
22
d)
23
100 %
