CBSE Class 9 Quantitative Reasoning MCQs

Question: Which one of the following number will be terminating

a) 129 /2²5⁷7⁵

b) 6/151

c) 77/210

d) 6/15

Answer: 6/15

Question: What is the value of (P+Q)/(P-Q), if P/Q=7/3 ?

a) 5/3

b) 3/2

c) 4/2

d) 5/2

Answer: 5/2

Question: .Which of the following is a proper fraction ?

a) 3/5

b) 7/2

c) 7/3

d) 3/5 & 5/3

Answer: 3/5

Question: If P=3 +2√2, the value of p + 1/p

a) 8

b) 6

c) 8

d) √8

Answer: 6

Question: Which one of the following is not prime number

a) 1

b) 2

c) 13

d) 11

Answer: 1

Question: The roots of the equation : 3x² - 7x + 4 = 0 are

a) Rationals

b) Irrationals

c) Positive integers

d) Complex Numbers

Answer: Rationals

Question: If one root of the quadratic equation x² - 4x + 1 = 0 is 2 -√3 . The other root will be

a) 2 +√3

b) 3

c) 2 -√3

d) None of these

Answer: 2 +√3

Question: The product of the roots of then quadratic equation 2x² + 5x – 7 = 0 is

a) 5/2

b) -7/2

c) -5/2

d) 7/2

Answer: -7/2

Question: Which is a quadratic equation

a) x+1/x=2

b) x(x²-1)=7

c) √x(3x+2)=4

d) x²-1/x=1

Answer: x+1/x=2

Question: Which of the following number is rational

a) √13

b) √121

c) √29

d) NONE

Answer: √121

Question: The value of the variable in the equation 5( -7x+3 ) = x – 21 is __________ .

a) 1

b) 2

c) -1

d) -2

Answer: 1