2013 · Q39
A number consists of two digits whose sum is 10. If the digits of the number are reversed, then the number decreases by 36. Which of the following is/are correct?
- 1The number is divisible by a composite number.
- 2The number is a multiple of a prime number.
Select the correct answer using the code given below:
Elementary MathematicsNumber System
- A1 only
- B2 only
- CBoth 1 and 2
- DNeither 1 nor 2
Explanation
Number is 73 (prime); 1 false (73 prime, not divisible by composite), 2 true (73×1). Answer B.