CAT DILR Questions | CAT Data Sufficiency questions

Comprehension

Directions for Questions: These questions are based on the information given below

Each question is followed by two statements, A and B. Answer each question using the following instructions :

Choose (a), if the question can be answered by using one of the statement alone but not by using the other statement alone.

Choose (b), if the question can be answered by using either of the statement alone.

Choose (c), if the question can be answered by using both statements together but not by either statement alone.

Choose (d), if the question cannot be answered on the basis of the two statements

CAT/2004

Question . 17

In a class of 30 students, Rashmi secured the third rank among the girls, while her brother Kumar studying in the same class secured the sixth rank in the whole class. Between the two, who had a better overall rank?

A : Kumar was among the top 25% of the boys merit list in the class in which 60% were boys.

B : There were three boys among the top five rank holders, and three girls among the top ten rank holders

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Explanatory Answer

Method of solving this CAT DILR Question from Data Sufficiency question

(a) A says there were 18 boys and 12 girls, and Kumar was among top 5 boys but his rank among them is not known. So A can not answer the question. As per B, there were 3 boys in top 5, hence remaining 2 were girls. As Kumar is 6th so Rasmi is definitely behind him.