Practice30Create account

What is the present age of the son? Statement I: The father is 30 years older than the son. Statement II: Five years from now, the father's age will be twice the son's age. Which statement(s) is/are sufficient to answer?

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

Step-by-Step Solution

Each statement gives one equation in two unknowns. Together, father = son + 30 and (son+35) = 2(son+5) give son = 25.
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

What is the two-digit number N? Statement I: The sum of the digits of N is 12. Statement…What is the present age of P? Statement I: P is four times as old as Q, and the sum of…How old is Meena now? Statement I: Meena's present age is a perfect square, and five…What is the ratio of the present ages of A and B? Statement I: Five years ago, A was…How is P related to Q? Statement I: P is the only son of Q's mother. Statement II: Q is…