# (Download) GATE -2018 : Exam Paper and Answer Key Computer Science and Information Technology (CS)

## (Download) GATE -2018 : Exam Paper and Answer Key

## Computer Science and Information Technology (CS)

**Q. 1 – Q. 5 carry one mark each.**

**Q.1 “From where are they bringing their books? ________ bringing _______ books from _____.” The words that best fill the blanks in the above sentence are**

(A) Their, they’re, there

(B) They’re, their, there

(C) There, their, they’re

(D) They’re, there, there

**Q.2 “A _________ investigation can sometimes yield new facts, but typically organized ones are more successful.” The word that best fills the blank in the above sentence is**

(A) meandering

(B) timely

(C) consistent

(D) systematic

**Q.3 The area of a square is d. What is the area of the circle which has the diagonal of the square as its diameter?**

(A) πd

(B) πd ^{2}

(C) 1/4πd^{2}

(D) 1/2πd

**Q.4 What would be the smallest natural number which when divided either by 20 or by 42 or by 76 leaves a remainder of 7 in each case?**

(A) 3047

(B) 6047

(C) 7987

(D) 63847

**Q.5 What is the missing number in the following sequence? 2, 12, 60, 240, 720, 1440, _____, 0**

(A) 2880

(B) 1440

(C) 720

(D) 0

**Q. 6 – Q. 10 carry two marks each.**

**Q.6 In appreciation of the social improvements completed in a town, a wealthy philanthropist decided to gift Rs 750 to each male senior citizen in the town and Rs 1000 to each female senior citizen. Altogether, there were 300 senior citizens eligible for this gift. However, only 8/9th of the eligible men and 2/3 ^{rd} of the eligible women claimed the gift. How much money (in Rupees) did the philanthropist give away in total?**

(A) 1,50,000

(B) 2,00,000

(C) 1,75,000

(D) 1,51,000

**Q.7 If pqr ≠ 0 and p ^{−x} =1/q, q^{−y} =1/r, r^{−z} =1/p , what is the value of the product xyz?**

(A) −1

(B) 1/pqr

(C) 1

(D) pqr

**Q.8 In a party, 60% of the invited guests are male and 40% are female. If 80% of the invited guests attended the party and if all the invited female guests attended, what would be the ratio of males to females among the attendees in the party?**

(A) 2:3

(B) 1:1

(C) 3:2

(D) 2:1

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**Courtesy:** GATE