class 10 maths chapter 1 quiz 2

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

(c) both of above

(d) none of above

(b) irrational

(a) rational

#2. The sum of two irrational numbers is always

(d) one

(a) irrational

(c) rational or irrational

(b) rational

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

(b) 3q

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

(d) 3q+ 1

(c) none of the above

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

(c) a = b×LH

(a) a × b = H × L

(b) a = b × H

(d) H = La×b

#5. HCF of 8, 9, 25 is

(b) 9

(c) 25

(d) 1

(a) 8

#6. LCM of 2³ × 3² and 2² × 3³ is

(d) 2² × 3²

(c) 2³ × 3³

(b) 3³

(a) 2³

#7. The rational number between 72 and 73 is

(b) 34

(c) 32

(a) 65

(d) 45

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

(d) none of above

(b) irrational

(c) both of above

(a) rational

#9. 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

(b) 3

(a) 2

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

(c) both of above

(d) none of above

(a) rational

(b) irrational

class 10 maths chapter 1 quiz 2

Results

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

#2. The sum of two irrational numbers is always

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

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

#5. HCF of 8, 9, 25 is

#6. LCM of 2³ × 3² and 2² × 3³ is

#7. The rational number between 72 and 73 is

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

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

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

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