Number Detective: Rational or Irrational?

Question 1mcq

Which decimal is irrational?

A.0.444...

B.2.5

C.0.090909...

D.1.010010001...

Question 2mcq

Which number is not rational?

A.4.5

B.-2

C.0.666...

D.√10

Question 3mcq

Which number is rational?

A.0.75

B.π

C.√5

D.√2

Question 4mcq

Which number is irrational?

A.0.125

B.7/9

C.√16

D.√3

Question 5mcq

Which expression is rational?

A.√18 × √2

B.√3 + √5

C.√2

D.π

Question 6fill blank

0.625 is a number.

Answer: ________________________________

Question 7mcq

Which number is irrational?

A.0.123456789101112...

B.0.125

C.7/8

D.√81

Question 8mcq

Which decimal is rational?

A.0.121212...

B.0.1010010001...

C.√2

D.π

Question 9mcq

Which decimal is non-terminating repeating?

A.0.080808

B.1.272727...

C.3.14

D.1.2345

Question 10mcq

Which decimal is terminating?

A.0.333...

B.0.25

C.2.121212...

D.√11