Data Sufficiency - Study Mode

[#81] Question : What does 'come' represent in a code language ? Statements : I. 'pit na tac' means 'come and go' in that code language. II. 'ja ta da' means 'you are good' in that code language. III. 'na da rac' means 'you can come' in that code language.
Correct Answer

(C) Only I and III
(G) Only I and III

Explanation

Solution: 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.

[#82] Question : How is the girl in the photograph related to Kunal? Statements : I. Pointing to the photograph, Kunal said, "She is the mother of my father's only granddaughter". II. Kunal has no siblings. III. Pointing to the photograph, Kunal said, "She is the only daughter-in-law of my mother."
Correct Answer

(D) Either only III or only I and II

Explanation

Solution: 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.

[#83] Question : How many sons does X have ? Statements : I. Q and U are brothers of T. II. R is sister of P and U. III. R and T are daughters of X.
Correct Answer

(D) I, II and III together are not sufficient

Explanation

Solution: From I, II and III, we conclude that all P, Q, R, T and U are children of X. Of these, Q and U are male while R and T are female. But the sex of P cannot be determined.

[#84] Question : Among T, V, B, E and C, who is the third from the top when arranged in the descending order of their weights ? Statements : I. B is heavier than T and C and is less heavier than V who is not the heaviest. II. C is heavier than only T.
Correct Answer

(A) I alone is sufficient while II alone is not sufficient

Explanation

Solution: From I, we have: B > T, B > C, V > B. Thus, V is heavier than each one of B, T and C. But V is not the heaviest. So, E is the heaviest. Thus, we have the order. E>V>B>T>C or E>V>B>C>T. Clearly, B is third from the top.

[#85] Question : Which word in the code language means 'flower' ? Statements : I. 'de fu la pane' means 'rose flower is beautiful' and 'la quiz' means 'beautiful tree'. II. 'de la chin' means 'red rose flower' and 'pa chin' means 'red tea'.
Correct Answer

(D) Neither I nor II is sufficient

Explanation

Solution: From the two statements given in I, the code for the only common word 'beautiful' can be determined. From the two statements given in II, the code for the only common word 'red' can be determined. In I and II, the common words are 'rose and 'flower' and the common code words are 'de' and 'la'. So, the code for 'flower' is either 'de' or 'la'.