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Data Sufficiency

Directions to SolveIn each of the following problems, there is one question and three statements I, II and III given below the question. You have to decide whether the data given in the statements is sufficient to answer the question. Read all the statements carefully and find which of the statements is/are sufficient to answer the given question. Choose the correct alternative in each question.

Q1: Question: Who is the tallest among six boys P, T, N, D, Q and R ? Statements:
  1. P is taller than D and N but not-as tall as T.
  2. R is taller than Q but not as tall as T.
  3. Q is not taller than T and R.

A Only I and II

B Only II and III

C Only I and III

D All I, II and III

E Only I and either II or III

ANS:A - Only I and II

Explanation: From I, we have: P > D, P > N, T > P i.e. T > P > D > N or T > P > N > D ...(i) From II, we have: R > Q, T > R i.e. T > R > Q ...(ii) From III, we have: T > Q, R > Q ...(iii) Clearly, from (i) and (ii), we conclude that T is taller than each one of P, N, D, R and Q. So, T is the tallest.



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