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The number ss is rational. Which statement about 10+s10 + s is true?\newlineChoices:\newline(A) 10+s10 + s is rational.\newline(B) 10+s10 + s is irrational.\newline(C) 10+s10 + s can be rational or irrational, depending on the value of ss.

Full solution

Q. The number ss is rational. Which statement about 10+s10 + s is true?\newlineChoices:\newline(A) 10+s10 + s is rational.\newline(B) 10+s10 + s is irrational.\newline(C) 10+s10 + s can be rational or irrational, depending on the value of ss.
  1. Identify Number Nature: Identify the nature of the number 1010.1010 is a rational number because it can be expressed as the ratio of two integers (101\frac{10}{1}).
  2. Consider Number ss: Consider the nature of the number ss. Since ss is given as a rational number, it can also be expressed as the ratio of two integers (pq\frac{p}{q}, where pp and qq are integers and qq is not zero).
  3. Analyze Sum of Rational Numbers: Analyze the sum of two rational numbers. The sum of two rational numbers is always rational. This is because adding two fractions (or integers) results in another fraction (or integer) which can be simplified if necessary.
  4. Apply Property to 10+s10 + s: Apply the property to 10+s10 + s.\newlineSince both 1010 and ss are rational, their sum 10+s10 + s must also be rational.
  5. Choose Correct Statement: Choose the correct statement from the given choices.\newlineBased on the previous steps, the correct statement about 10+s10 + s is that it is rational.

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