MCQ
Sum of two rational numbers is, ______ number:
- Arational
- Birrational
- CInteger
- DBoth 1, 2 and 3
Solution:
The sum of two rational numbers is a rational number.
Ex: Let two rational numbers are $\frac{1}{2}$ and $\frac{1}{3}$Now, $\frac{1}{2}+\frac{1}{3}=\frac{5}{6}$ which is a rational number:
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A box contains 3 red, 3 white and 3 green balls. A ball is selected at random. Find the probability that the ball picked up is neither a white nor a red ball: