class 10 maths chapter 1 quiz 2

#1. HCF of 8, 9, 25 is

(c) 25

(a) 8

(d) 1

(b) 9

#2. The product of two different irrational numbers is always

(b) irrational

(d) none of above

(c) both of above

(a) rational

#3. The product of a rational and irrational number is

(a) rational

(d) none of above

(b) irrational

(c) both of above

#4. If n is a natural number, then exactly one of numbers n, n + 2 and n + 1 must be a multiple of

(c) 5

(d) 7

(a) 2

(b) 3

#5. If a and b are two positive numbers and H and L are their HCF and LCM respectively. Then

(b) a = b × H

(d) H = La×b

(a) a × b = H × L

(c) a = b×LH

#6. The rational number between 72 and 73 is

(c) 32

(b) 34

(a) 65

(d) 45

#7. LCM of 2³ × 3² and 2² × 3³ is

(c) 2³ × 3³

(b) 3³

(d) 2² × 3²

(a) 2³

#8. The sum of two irrational numbers is always

(b) rational

(c) rational or irrational

(d) one

(a) irrational

#9. If b = 3, then any integer can be expressed as a =

(b) 3q

(a) 3q, 3q+ 1, 3q + 2

(c) none of the above

(d) 3q+ 1

#10. The sum of a rational and irrational number is

(a) rational

(b) irrational

(d) none of above

(c) both of above

class 10 maths chapter 1 quiz 2

Results

#1. HCF of 8, 9, 25 is

#2. The product of two different irrational numbers is always

#3. The product of a rational and irrational number is

#4. If n is a natural number, then exactly one of numbers n, n + 2 and n + 1 must be a multiple of

#5. If a and b are two positive numbers and H and L are their HCF and LCM respectively. Then

#6. The rational number between 72 and 73 is

#7. LCM of 2³ × 3² and 2² × 3³ is

#8. The sum of two irrational numbers is always

#9. If b = 3, then any integer can be expressed as a =

#10. The sum of a rational and irrational number is

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