Multiple choice

Rashmi was born in 1989 and in 1998, she was nine years old. It is clear from this example that the last two digits of a person’s birth year will be the same as the last two digits of the year of that person’s 9th birthday, except that the position of the digits will be reversed.

Which of the following is the best criticism of the assertions made?

  1. This generality is valid only for the birth years that do not end in two zeroes.

  2. The example above does not exhibit the same principle as is expressed in the generality based on it.

  3. The generalisation is valid only for those years of birth in which the last digit is one greater than the second last digit.

  4. The example cannot be shown to be correct unless the truth of the generality is already presupposed.

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The generality is only true for some birth years. A good criticism of the generality would show when the generality is not true. This answer choice does just that and thus, is the correct answer.

Keep practicing — related questions