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Worksheetsreal number
Total questions: 15
Worksheet time: 5mins
For some integer m, every odd integer is of the form
m
m+ 1
2m
2m + 1
If two positive integers a and b are written as a = p3q2 and b = pq3; p, q are prime numbers, then HCF (a, b) is:
pq
pq2
p3q3
p2q2
The product of a non-zero number and an irrational number is
always irrational
always rational
rational and irrationl
one
If the HCF of 65 and 117 is expressible in the form 65 m – 117, then the value of m is
4
3
1
2
The largest number which divides 70 and 125, leaving remainders 5 and 8, respectively, is
13
65
875
1750
If two positive integers p and q can be expressed as p = ab2 and q = a3b; a, b being prime numbers, then LCM (p, q) is
ab
a2b2
a3b2
a3b3
The values of the remainder r, when a positive integer a is divided by 3 are:
0,1,2,3,
0,1
0,1,2
2,3,4
A rational number in its decimal expansion is 327.7081. What would be the prime factors of q when the number is expressed in the p/q form?
2 and 3
3 and 5
2,3 and 5
2 and 5
The least number that is divisible by all the numbers from 1 to 10 (both inclusive) is
10
100
2060
2520
If n is a rational number, then 52n − 22n is divisible by
3
7
both 3 and 7
none of these
The H.C.F of 441, 567 and 693 is
1
441
126
63
The product of a non-zero number and an irrational number is
always irrational
always rational
rational and irrationl
one
On a morning walk, three persons step off together and their steps measure 40 cm, 42 cm and 45 cm, respectively. What is the minimum distance each should walk so that each can cover the same distance in complete steps?
2520cm
2525 cm
2555 cm
2528
The decimal form of \(\frac{129}{2^{2} 5^{7} 7^{5}}\) is
Answer
Answer: c
terminating
non-terminating
non-terminating
none of the above
LCM of the given number ‘x’ and ‘y’ where y is a multiple of ‘x’ is given by
x
y
xy
(\frac{x}{y}\)
