GATE Practice Question and Answer

Q: If 'x' means '-', '÷' means '+', '-' means '÷' and '+' means 'x', then 24 - 4 ÷ 6 x 3 + 4 = ? 5934 0

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    0
    Correct
    Wrong
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    1
    Correct
    Wrong
  • 3
    2
    Correct
    Wrong
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    3
    Correct
    Wrong
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Answer : 1. "0"
Explanation :

Answer: A) 0 Explanation: From the given information in the question24 ÷ 4 + 6 - 3 x 4 6 + 6 - 12 = 0

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Answer : 2. "1/5"
Explanation :

Answer: B) 1/5 Explanation: Number of applicants = 5On a day, only 1 leave is approved.Now favourable events =  1 of 5 applicants is approvedProbability that Laxmi priya's leave is granted = 1/5.

Q: One year ago the ratio between Maneela’s and Shanthi’s salary was 3 : 4. The ratios of their individual salaries between last year’s and this year’s salaries are 4 : 5 and 2 : 3 respectively. At present the total of their salary is Rs. 4160. The salary of Maneela, now is? 5822 0

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    Rs. 1600
    Correct
    Wrong
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    Rs. 1700
    Correct
    Wrong
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    Rs. 1800
    Correct
    Wrong
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    Rs. 1900
    Correct
    Wrong
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Answer : 1. "Rs. 1600"
Explanation :

Answer: A) Rs. 1600 Explanation: Let the salaries of Maneela and Shanthi one year before be M1, S1 & now be M2, S2 respectively. Then, from the given data, M1/S1 = 3/4  .....(1) M1/M2 = 4/5 .....(2) S1/S2 = 2/3  .....(3) and M2 + S2 = 4160  .....(4)   Solving all these eqtns, we get M2 = Rs. 1600.

Q: Statement: Huge amount of resources are required to develop tourist places in a country like India, which is endowed with vast coastlines, rivers, forests, temples etc. Courses of action:a. More tourist resorts along the coastlines only should be started.b. The tourist potential of India should be exploited. 5815 0

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    Only b follows
    Correct
    Wrong
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    Only a follows
    Correct
    Wrong
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    Both a & b follows
    Correct
    Wrong
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    Neither a nor b follows
    Correct
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Answer : 1. "Only b follows"
Explanation :

Answer: A) Only b follows Explanation: As in the given statement, India is already endowed with tourist spots. Therefore, the existing potential should be exploited.

Q: The process of collecting, organizing and analyzing data is called 5809 0

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    Statistics
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    Data collection
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    Wrong
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    Probability
    Correct
    Wrong
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    Systematic evaluation
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Answer : 1. "Statistics"
Explanation :

Answer: A) Statistics Explanation: The process of collecting, organizing and analyzing data is called Statistics.

Q: Find the missing term in the following series ? 10000, 11000, 9900, 10890, ?, 10781 5801 0

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    10423
    Correct
    Wrong
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    9801
    Correct
    Wrong
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    10241
    Correct
    Wrong
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    9712
    Correct
    Wrong
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Answer : 2. "9801"
Explanation :

Answer: B) 9801 Explanation: Clearly, alternatively we add and subtract 10% of a term to obtain the next term of the series.Thus, 10000 + (10% of 10000)= 11000; 11000 - (10% of 11000) = 9900; 9900 + (10% of 9900)  = 10890; 10890 - (10% of 10890) = 9801. 9801 + (10% of 9801)  = 9801+980 = 10781.So, missing term = 10890- (10% of 10890)= 9801.

Q: Find the wrong number from the following series ?37   47    52    67    87    112    142 5784 0

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    87
    Correct
    Wrong
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    47
    Correct
    Wrong
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    52
    Correct
    Wrong
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    67
    Correct
    Wrong
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Answer : 2. "47"
Explanation :

Answer: B) 47 Explanation: The given series follows the rule,+(5x1), +(5x2), +(5x3), +(5x4), +(5x5),.... So starting from 37, 37 + 5 = 42, 42 + 10 = 52, 52 + 15 = 67, 67 + 20 = 87,...So wrong number is 47 which is to be 42.

Q: Thunder is to Lightning as Grape is to 5782 0

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    Wine
    Correct
    Wrong
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    Soil
    Correct
    Wrong
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    Seed
    Correct
    Wrong
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    Water
    Correct
    Wrong
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Answer : 3. "Seed"
Explanation :

Answer: C) Seed Explanation: Lightning produces thunder just as a seed will eventually produce a grape.

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