Answer:
2/4 produces a rational number when added to 0.3
Explanation:
The question is:
Which number produces a rational number when added to 0.3
a) 2/4 b) √7 c) 0.5050050005... d) π
Solution:
A rational number is one that can be written as the ratio of two integers.
It can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number. When expressed as a decimal number, rational numbers will sometimes have the last digit recurring indefinitely
The first option 2/4 is a rational number. If we add 0.3 or 3/10 to it. Its sum will still be a rational number which is 4/5 or 0.8.
The second option is √7 which is an irrational number. Its exact value is 2.645751311... If we add 0.3 to it, it will still remain irrational.
The third option is also irrational
The fourth option π has a value of 3.14159.... If we add 0.3 to it, it will give the sum of 3.441592654. This is also irrational number.
Thus the correct option is 2/4.