Data Sufficiency - Base Level 3
Practice and master this topic with our carefully crafted questions.
In 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.
To find the code for 'come' we need to have two statements which have one common code word and 'come' as the common word, which is there in I and III.
From I, II and III, we conclude that all P, Q, T, and U are children of X.Of these, to Q and U are male while R and T are female. But the sex of P cannot be determined.
Observing I, II and III, we find that similar letters have similar code symbols at the corresponding places in the code. So, this is direct-coding.
Thus, to find the code for DATE, we need the code for D which can be obtained from I only ( i. e. $ ) and the codes for A, T and E which can be obtained either from II or III @, # and % respectively).
From II, we conclude that in a class of 40, Deepak rank 23rd from the bottom i. e. 18th from the top.
From I and II, we find that Suman is 3 ranks below 18th rank from the top i. e.she rank 21st from the top.
From Ii and III, we find that Suman is 3 rank above 23rd rank from the bottom i. e. she ranks 20th from the bottom or 21st from the top.
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.
Clearly, from I and III, we conclude that T is to the North-West of R.
From the given statement, the descending order of heights is : _, Q, _, S, _.
From II, we have the order : _, Q, R, S, _. Thus, R is in the middle.
From III, we have the order : P, Q, _, S, _. But, according to I, T is not the shortest.
So, R is the shortest. Thus, we have the order : P, Q, T, S, R. So, T is in the middle.
From I, we conclude that the girl is either Kunal's or his brother's wife. But, according to II, Kunal has no siblings.
So, from both I and II, we conclude that the girl is Kunal's wife.
From III, we find that the girl is the only daughter-in -law of Kunal's mother i. e. she is Kunal's wife.
From I, the order is : E, B, C or C, B, E.
From II, the order is : E, B.
From III, the order is : A, D, E.
Combining the above three, we get the order as : A, D, E, B, C. Clearly, E is sitting in the middle.
From II , we know that Gopal's brother was bron in 1982.
From III, we find we find Gopal's brother was 8 years younger to him i. e. Gopal's was bron in 1974.
From I, we find that Sanjay is 6 years older than Gopal. Thus, Sanjay was bron in 1968.