Practice30Create account

What are the present ages of A and B? Statement I: The ratio of their present ages is 4 : 5. Statement II: The sum of their present ages is 45 years.

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

Step-by-Step Solution

I gives only the ratio and II only the sum. Together gives , so and .
Answer: B) 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

How is P related to Q? (I) P is the brother of R, and R is the son of Q. (II) Q is the…How is D related to A? (I) A is the father of B, and B is the brother of D. (II) D is…How is X related to Y? (I) X is the son of Y's brother. (II) Y's mother is X's…How is Q related to P? (I) R is the father of P and the husband of Q. (II) Q has only…How is R related to P? (I) P is the mother of Q, and Q is the sister of R. (II) R is the…