Question

In a classroom activity on real numbers, the students have to pick a number card from a

pile and frame a question on it if it is not a rational number for the rest of a class. The

number cards picked up by first 5 students and their questions on the numbers for the rest

of the class are as shown below. Answer them
.

. Suraj picked up √ and his question was: Which of the following is true about?

A. It is a natural number.
C. It is a whole number.

B. It is an irrational number.
D. It is a rational number.

Shreya picked up “ Bonus Card” and her question was : Which of the following is not

irrational?

A. 3- 4√
B. √ – 6
C. 2+ 2√
D. 4+ √ – 6


Suman picked up

√

and her question was :



√

can be rationalized as ,


A. 10√
B. 10/√
C. 5√
D. 20√


Raj picked up (2 + √ ) . His question was what is product of (2-√ ) (2+ √ ) ?

A. 1
B. -1
C. 4
D. 3


Finally Riya selected card √ . Her question was: What happens when 6√ is multiplied by

A. 294
B. 194
C. 42√
D. 13√


please tell
​

Answer 1

Answer:

ans 1 ) option b

answer 2) option c

answer 3) option b

answer 4) option c

answer 5) option d

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