Rational Numbers Test

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Rational Numbers Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

What type of a number is −3/0?

A
A positive rational number.

B
A negative rational number.

C
Either a positive or a negative rational number.

D
Neither a positive nor a negative rational number.

Solution

Since, denominator is 0, it is not a rational number.
Question 2
1 / -0

P: The quotient of two integers is always a rational number. Q : 1/0 is not rational. Which of the following statements is true?

A
P is true and Q is the correct explanation of P.

B
P is false and Q is the correct explanation of P.

C
P is true and Q is false.

D
Both P and Q are false.

Solution

Since, 1/0 is not rational, the quotient of two integers is not always rational.
Question 3
1 / -0

How many natural numbers are there between 3/10 to 7/10?

A
0

B
1

C
2

D
3

Solution

Natural numbers are integers starting from 1 like 1, 2, 3, 4,......

3/10=0.3 and 7/10=0.7

Thus, there is no natural number between 0.3 to 0.7
Question 4
1 / -0

The product of two whole numbers is always a whole number.

A
true

B
false

C
both true and false

D
none of these

Solution

If 'a' and 'b' are any two whole numbers, their product will also be a whole number. We know that the multiplication of any two numbers can be expressed as repeated addition of one number. So, if we are adding any whole number to itself again and again, then we will surely get a whole number.
Let's assume a = 2, b = 3.a×b=2×3
which is same as adding '2' three times to itself, which will result in a whole number.
Question 5
1 / -0

Which of the following is not a rational number(s)?

A
−2/9

B
4/−7

C
−3/−17

D
−3/−17

Solution

√2/3 is not a rational number.
Question 6
1 / -0

Which is the correct descending order of −2,4/−5,−11/20,3/4 ?

A
3/4>−2>−11/20>4/−5

B
3/4>−11/20>−4/5>−2

C
3/4>4/−5>−2>−11/20

D
3/4>4/−5>−11/20>−2

Solution

L.C.M. of 5, 4 and 20 is 20.

4/−5×4/4=16/−20;3/4=3×5/4×5=15/20
−2<4/−5<−11/20<3/4 or 3/4>−11/20>4/−5>−2
is the required descending order. Rewrite equivalent fractions of the given fractions and then compare then. Arrange them in descending order.

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Re-Attempt Weekly Quiz Competition

Rational Numbers Test - 2

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Rational Numbers Test - 2

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SHARING IS CARING

Question 1

A positive rational number.

A negative rational number.

Either a positive or a negative rational number.

Neither a positive nor a negative rational number.

Solution

Question 2

P is true and Q is the correct explanation of P.

P is false and Q is the correct explanation of P.

P is true and Q is false.

Both P and Q are false.

Solution

Question 3

0

1

2

3

Solution

Question 4

true

false

both true and false

none of these

Solution

Question 5

−2/9

4/−7

−3/−17

−3/−17

Solution

Question 6

3/4>−2>−11/20>4/−5

3/4>−11/20>−4/5>−2

3/4>4/−5>−2>−11/20

3/4>4/−5>−11/20>−2

Solution

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