Practice30Create account

What is the two-digit number? Statement I: The sum of its two digits is 9. Statement II: Its tens digit is greater than its units digit by 3. Which statement(s) is/are sufficient to answer the question?

Competition practiceData Sufficiency
  • AStatement I alone is sufficient but Statement II alone is not
  • BStatement II alone is sufficient but Statement I alone is not
  • CEither statement alone is sufficient
  • DBoth statements together are needed (neither alone is sufficient)

Step-by-Step Solution

Together tens + units = 9 and tens − units = 3 give the digits 6 and 3, i.e. 63; neither condition alone fixes the number.
Answer: D) Both statements together are needed (neither alone is sufficient)

Master this topic in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Data Sufficiency practice questions

More Data Sufficiency practice

In a certain code language, what is the code for the word 'good'? Statement I: In that…Who is the tallest among five friends A, B, C, D and E? Statement I: A is taller than B…What is D's rank from the top in a class? Statement I: D is 7th from the bottom.…How is X related to Y? Statement I: X is the father of Y's son. Statement II: Y is the…How many students are there in a row? Statement I: Rahul is 7th from the top and 18th…