WorksheetsReal Numbers
Total questions: 7
Worksheet time: 4mins
Name
Class
Date
1.
The LCM of 2 numbers is 1200. Which of the following can't be their HCF ?
a)
600
b)
500
c)
400
d)
200
2.
Which of the following is irrational?
a)
12.36743
b)
12.1212121........
c)
6251/2
d)
2.254766544432.....
3.
If the HCF of 65 and 117 is expressible in form 65m-117, m=
a)
4
b)
2
c)
1
d)
3
4.
According to Euclid,
a)
-1 < 0 < 1
b)
q = a+b
c)
0 < r < b
d)
(a+b) (a-b) = a2 - b2
5.
LCM of 2x, 3x, 7x=
(a)
6.
If a=23 *3, b=2*3*5, c=3n *5 and LCM(a, b, c) = 23 *32 *5. n=
a)
1
b)
2
c)
3
d)
4
7.
23.2546321578654..... is a rational number.
a)
TRUE
b)
FALSE
100 %
