Quiz - 1 Class - 9 Chapter - Number System
- 1.0.1 can be represented by
- A.
1/10
- B.
1/100
- C.
1/1000
- D.
1/10000
- 2.Which one of the following is a correct statement?
- A.
Decimal expansion of a rational number is terminating.
- B.
Decimal expansion of a rational number is non-terminating.
- C.
Decimal expansion of an irrational number is terminating.
- D.
Decimal expansion of an irrational number is non- terminating and non- repeating.
- 3.Which one of the following statements is true?
- A.
The sum of two irrational numbers is always an irrational number.
- B.
The sum of two irrational numbers is always a rational number.
- C.
The sum of two irrational numbers may be a rational number or an irrational number.
- D.
The sum of two irrational numbers is always an integer.
- 4.Which of the following is a correct statement ?
- A.
Product of two irrational numbers is always irrational.
- B.
Product of a rational and an irrational number is a always irrational.
- C.
Sum of two irrational numbers can never be irrational.
- D.
Sum of an integer and a rational number can never be an integer.
- 5.Which of these is greatest number?
- A.
0.1
- B.
0.01
- C.
0.001
- D.
0.0001
- 6.The number 0.318564318564318564.......... is
- A.
A natural number
- B.
An integer
- C.
A rational number
- D.
An irrational number
- 7.if n is a natural number then, √n is always
- A.
Always a natural number
- B.
Always an irrational number
- C.
Always an irrational number
- D.
Sometimes a natural number and sometimes an irrational number
- 8.Which of the following numbers can be represented as non-terminating, repeating decimals?
- A.
39/24
- B.
3/16
- C.
3/11
- D.
137/25
- 9.Every point on a number line represents
- A.
A unique real number
- B.
A natural number
- C.
A rational number
- D.
An irrational number
- 10.The number 1.272727...... in the form p/q, where p and q are integers and q is not zero, is
- A.
14/9
- B.
14/11
- C.
14/13
- D.
14/15
- 11.The number 0.333333...... in the form p/q, where p and q are integrals and q is not zero, is
- A.
33/100
- B.
3/10
- C.
1/3
- D.
3/100
- 12.The smallest rational number by which 1/3 should be multiplied so that its decimal expansion terminates after one place of decimal, is
- A.
1/10
- B.
3/10
- C.
3
- D.
30
- 13.0.32222222...... when expressed in the form p/q( where p and q are integers and q is not zero)
- A.
8/25
- B.
29/90
- C.
32/99
- D.
32/199
- 14.Which of the following is irrational ?
- A.
0.15
- B.
0.01516
- C.
0.151615161516.....
- D.
0.50155001500015....
- 15.The value of 0.232323..... + 0.222222........ is
- A.
0.45454545.....
- B.
0.43434343
- C.
0.45
- D.
0.43
Questions: 20 | Attempts: 12388 | Last updated: Mar 22, 2022
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