GATE Practice Question and Answer
8Q: In how many different ways can the letters of the word 'THERAPY' be arranged so that the vowels never come together? 1681 05b5cc69de4d2b4197774c919
5b5cc69de4d2b4197774c919- 11440false
- 2720false
- 32250false
- 43600true
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Answer : 4. "3600"
Explanation :
Answer: D) 3600 Explanation: Given word is THERAPY. Number of letters in the given word = 7 These 7 letters can be arranged in 7! ways. Number of vowels in the given word = 2 (E, A) The number of ways of arrangement in which vowels come together is 6! x 2! ways Hence, the required number of ways can the letters of the word 'THERAPY' be arranged so that the vowels never come together = 7! - (6! x 2!) ways = 5040 - 1440 = 3600 ways.
Q: Third proportion of 10 and 20 is 1681 05b5cc66de4d2b4197774bfa0
5b5cc66de4d2b4197774bfa0- 130false
- 240true
- 325false
- 420false
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Answer : 2. "40"
Explanation :
Answer: B) 40 Explanation: The third proportional of two numbers p and q is defined to be that number r such that p : q = q : r. Here, required third proportional of 10 & 20, and let it be 'a' => 10 : 20 = 20 : a 10a = 20 x 20 => a = 40 Hence, third proportional of 10 & 20 is 40.
Q: What number should be Replaced ? 1678 05b5cc6d1e4d2b4197774e3de
5b5cc6d1e4d2b4197774e3de- 115false
- 217false
- 310false
- 46true
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Answer : 4. "6"
Explanation :
Answer: D) 6 Explanation: Sum of numbers in the outer circle in before Arc should come in inner circle patterns in the clock wise direction next Arc. i.e, 9+6 = 15 comes in next arc of inner circle 7+3 = 10 comes in next arc of inner circle In the same way, 4+2 = 6 comes in place of '?'.
Q: In a box, there are four marbles of white color and five marbles of black color. Two marbles are chosen randomly. What is the probability that both are of the same color? 1677 05b5cc6a3e4d2b4197774cc15
5b5cc6a3e4d2b4197774cc15- 12/9false
- 25/9false
- 34/9true
- 40false
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Answer : 3. "4/9"
Explanation :
Answer: C) 4/9 Explanation: Number of white marbles = 4 Number of Black marbles = 5 Total number of marbles = 9 Number of ways, two marbles picked randomly = 9C2 Now, the required probability of picked marbles are to be of same color = 4C2/9C2 + 5C2/9C2 = 1/6 + 5/18 = 4/9.
Q: If a barometric reading is falling, this usually indicates what 1677 05b5cc6a5e4d2b4197774ccc6
5b5cc6a5e4d2b4197774ccc6- 1Increasing pressurefalse
- 2Decreasing pressuretrue
- 3No pressurefalse
- 4Nonefalse
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Answer : 2. "Decreasing pressure"
Explanation :
Answer: B) Decreasing pressure Explanation: A barometer is a tool that measures air pressure A rising barometer indicates increasing air pressure, a falling barometer indicates decreasing air pressure. In space, there is a nearly complete vacuum, so the air pressure is zero.
Q: The area of a square is 1024 sq.cm. What is the ratio of the length to the breadth of a rectangle whose length is twice the side of the square and breadth is 12 cm less than the side of this square ? 1676 05b5cc72ce4d2b4197774f76e
5b5cc72ce4d2b4197774f76e- 114:9false
- 213:12false
- 316:5true
- 417:13false
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Answer : 3. "16:5"
Explanation :
Answer: C) 16:5 Explanation: Area of a square SxS = 1024 => S = 32 cmLength of the rectangle = 32x2 cm = 64 cmBreadth of the rectangle = 32 - 12 = 20 cmRequired ratio = 64 : 20 = 16 : 5
Q: Which of the following is a compound sentence? 1675 05b5cc666e4d2b4197774becb
5b5cc666e4d2b4197774becb- 1We can go see a movie, or we can get something to eat.true
- 2When you get there, please remember to call me.false
- 3Mohan bought some new shoes and wore them to a party.false
- 4None of the abovefalse
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Answer : 1. "We can go see a movie, or we can get something to eat."
Explanation :
Answer: A) We can go see a movie, or we can get something to eat. Explanation: A compound sentence is a sentence that has at least two independent clauses joined by a comma, semicolon or conjunction. An independent clause is a clause that has a subject and verb and forms a complete thought. Here except option A) other two options dependent. Hence, A) We can go see a movie, or we can get something to eat is a compound sentence.
Q: Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5 ? 1675 05b5cc764e4d2b4197774fd7b
5b5cc764e4d2b4197774fd7b- 12/3false
- 21/2true
- 37/8false
- 44/5false
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Answer : 2. "1/2"
Explanation :
Answer: B) 1/2 Explanation: Multiples of 3 below 20 are 3, 6, 9, 12, 15, 18 Multiples of 5 below 20 are 5, 10, 15, 20 Required number of possibilities = 10Total number of possibilities = 20Required probability = 10/20 = 1/2.

