GATE Practice Question and Answer
8Q: Statement 1: Elizabeth has four children.Statement 2: Two of the children have blue eyes and two of the children have brown eyes.Statement 3: Half of the children are girls.If the first three statements are facts, which of the following statements must also be a fact? a. At least one girl has blue eyes.b. Two of the children are boys.c. The boys have brown eyes. 1875 05b5cc76ae4d2b4197774fe84
5b5cc76ae4d2b4197774fe84- 1a onlyfalse
- 2a and bfalse
- 3b onlytrue
- 4b and cfalse
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Answer : 3. "b only"
Explanation :
Answer: C) b only Explanation: Since half of the four children are girls, two must be boys. It is not clear which children have blue or brown eyes. So only statement (b) follows.
Q: The Study of Universe is called 1875 05b5cc6abe4d2b4197774d025
5b5cc6abe4d2b4197774d025- 1Universologyfalse
- 2Cosmetologyfalse
- 3Petologyfalse
- 4Cosmologytrue
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Answer : 4. "Cosmology"
Explanation :
Answer: D) Cosmology Explanation: Cosmology is the scientific study of the large scale properties of the universe as a whole. It endeavors to use the scientific method to understand the origin, evolution and ultimate fate of the entire Universe. Depending on the outcome of the observations, the theories will need to be abandoned, revised or extended to accommodate the data. The prevailing theory about the origin and evolution of our Universe is the so-called Big Bang theory.
Q: Find the compound interest on Rs. 6,500 for 4 years if the rate of interest is 10% p.a. for the first 2 years and 20% per annum for the next 2 years? 1874 05b5cc6abe4d2b4197774cfe0
5b5cc6abe4d2b4197774cfe0- 1Rs. 3845false
- 2Rs. 4826true
- 3Rs. 5142false
- 4Rs. 4415false
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Answer : 2. "Rs. 4826"
Explanation :
Answer: B) Rs. 4826 Explanation: We know the formula for calculating The compound interest C = P1 + r100n - 1 where P = amount, r = rate of interest, n = time Here P = 5000, r1 = 10, r2 = 20 Then C = 65001 + 101002 x 1 + 201002 - 1= 6500 x 18562500= 65 x 185625 C = Rs. 4826.
Q: Which Indian city is named after the snake Anantha of Lord Vishnu? 1874 05b5cc683e4d2b4197774c2b6
5b5cc683e4d2b4197774c2b6- 1Trivandrumtrue
- 2Tiruchirappallifalse
- 3Tanjavorefalse
- 4Vellorefalse
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Answer : 1. "Trivandrum"
Explanation :
Answer: A) Trivandrum Explanation: Thiruvananthapuram also known as Trivandrum, is the capital and the largest city of the Indian state of Kerala is named after the snake Anantha of Lord Vishnu.
Q: Find the next number in the given number series? 2, 19, 0, 21, –2, ? 1872 05b5cc69de4d2b4197774c8f5
5b5cc69de4d2b4197774c8f5- 123true
- 225false
- 327false
- 429false
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Answer : 1. "23"
Explanation :
Answer: A) 23 Explanation: The given number series 2, 19, 0, 21, –2, ? follows a pattern, 2 2 + 17 = 19 19 - 19 = 0 0 + 21 = 21 21 - 23 = -2 -2 + 25 = 23 Hence, the next number in the series is 23.
Q: At what time, between 3 o’clock and 4 o’clock, both the hour hand and minute hand coincide each other ? 1871 05b5cc6d8e4d2b4197774e74b
5b5cc6d8e4d2b4197774e74b- 13:16 7/11false
- 23:16 11/4false
- 33:30false
- 43:16 4/11true
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Answer : 4. "3:16 4/11"
Explanation :
Answer: D) 3:16 4/11 Explanation: Coincide means 00 angle. This can be calculated using the formulafor time A to B means [11m/2 - 30 (A)] Here m gives minutes after A the both hands coincides. Here A = 3, B = 4 0 =11m/2 –30 × 311m = 90 × 2 = 180m= 180/11 = 16 4/11 So time = 3 : 16 4/11
Q: What is more useful when it is broken? 1871 05b5cc698e4d2b4197774c640
5b5cc698e4d2b4197774c640- Show AnswerHide Answer
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Answer :
Explanation :
An Egg is more useful when it is broken than it is not.
Q: In following number series only one number is wrong. Find out that wrong or odd number in the series? 6, 78, 858, 7722, 54055, 270270 1870 05b5cc6bce4d2b4197774d8bb
5b5cc6bce4d2b4197774d8bb- 1270270false
- 254055true
- 37722false
- 4858false
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Answer : 2. "54055"
Explanation :
Answer: B) 54055 Explanation: Here the given series follows a pattern that, multiplying the number with odd numbers in decreasing order starting with 13. That is, 6 × 13 = 78 65 × 11 = 858 858 × 9 = 7722 7722 × 7 = 54054 54054 × 5 = 270270 Hence, the wrong number is 54055

