Question

Mr. Pandya told students to choose numbers and form two groups X and Y. The following numbers were chosen by the students. GROUP X: 0,-3, 2

GROUP Y: -6, 4, √3

He instructed students to form rational numbers of form where 'a' is to be chosen from group Y and 'b' is to be chosen from box X.

1. Although there are 6 numbers but the students form only 3 rational numbers. Why?

2. List the rational numbers formed by students.

3. How many positive rational numbers are there?

(i)1 (ii) 2 (iii) 3

(iv) 4 4. How many negative rational numbers are there? 2 (iii) 3 (iv) 4

(i)1

(ii)

5. How many integers are there? (i)1 (ii) 2 (iii) 3 (iv) 4

6. If 'a' is chosen from group X and 'b' is chosen from group Y then find the number of rational numbers formed.

7. In question 1 and 5 the numbers were chosen from same groups but still number of rational numbers formed is different. Why?





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Answer 1

Answer:--

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Answer 2

Answer:

2. 4 rational number are formed in total.

3. (ii) 2

4. (ii) 2

5. (iv) 4