GATE Practice Question and Answer

Q: Find the odd one out of the series ? 35, 48, 54, 63, 81, 105 1881 0

  • 1
    63
    Correct
    Wrong
  • 2
    48
    Correct
    Wrong
  • 3
    35
    Correct
    Wrong
  • 4
    81
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "35"
Explanation :

Answer: C) 35 Explanation: 48, 54, 63, 81 and 105 are divisible by 3 but not 35.

Q: P, Q, and R can do a job in 12 days together.  If their efficiency of working be in the ratio 3 : 8 : 5, Find in what time Q can complete the same work alone? 1881 0

  • 1
    36 days
    Correct
    Wrong
  • 2
    30 days
    Correct
    Wrong
  • 3
    24 days
    Correct
    Wrong
  • 4
    22 days
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "36 days"
Explanation :

Answer: A) 36 days Explanation: Given the ratio of efficiencies of P, Q & R are 3 : 8 : 5 Let the efficiencies of P, Q & R be 3x, 8x and 5x respectively They can do work for 12 days. => Total work = 12 x 16x = 192x   Now, the required time taken by Q to complete the job alone = 162x8x = 24 days.

Q: What will come in place of the question mark (?) in the following number series? 312      231      295      ?      282      257 1881 0

  • 1
    210
    Correct
    Wrong
  • 2
    25
    Correct
    Wrong
  • 3
    246
    Correct
    Wrong
  • 4
    279
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "246"
Explanation :

Answer: C) 246 Explanation: The series follows a pattern that, -92, +82, -72, +62, -52

Q: Statement: There is a substantial increase in the number of accidents causing deaths and severe injuries due to malfunctioning of the traffic signals.Course of action:a. The traffic police should immediately post traffic personnel at the junctions.b. The signal system should immediately be repaired or replaced. 1880 0

  • 1
    Only a follows
    Correct
    Wrong
  • 2
    Either a or b follows
    Correct
    Wrong
  • 3
    Only b follows
    Correct
    Wrong
  • 4
    Neither a nor b follows
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "Either a or b follows"
Explanation :

Answer: B) Either a or b follows Explanation: Clearly, either the traffic signals should be made to function properly or traffic personnel should be deployed to guide vehicular movement in the right way. So either I or II follows.

Q: Can you spot the missing number? 1879 0

  • 1
    3
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    Both A & B
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "Both A & B"
Explanation :

Answer: C) Both A & B Explanation: The given number puzzle can be soved in two ways. Logic 1 :: Row 1  - 2 x 3 = 6 , 6 x 3 = 18 Row 2  - 4 x 5 = 20 , 20 x 5 = 100 Row 3  - 3 x 7 = 21 , 21 x 7 = 147   Hence, the missing number could be 3.   Logic 2 :: Row 1 - 6 x (2+1) = 18 Row 2 - 20 x (4+1) = 100 Row 3 - 21 x (6+1) = 147   Hence, the missing number could be 6.   Therefore, 3 or 6 is the right answer.

Q: 6 boys and 8 girls can do job in 10 days , 26 boys & 48 women do work in 2 days. Find time taken by 15 boys and 20 girls to do same work ? 1878 0

  • 1
    2 days
    Correct
    Wrong
  • 2
    3 days
    Correct
    Wrong
  • 3
    4 days
    Correct
    Wrong
  • 4
    5 days
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "4 days"
Explanation :

Answer: C) 4 days Explanation: One day work of 6 boys and 8 girls is given as 6b + 8g = 1/10 -------->(I)   One day work of 26 boys and 48 women is given as 26b + 48w = 1/2 -------->(II)   Divide both sides by 2 in (I) and then multiply both sides by 5 Now we get, 15b + 20g = 1/4. Therefore, 15 boys and 20 girls can do the same work in 4 days.

Q: How many birthdays does the average person have? 1876 0

  • Show AnswerHide Answer
  • Workspace

Answer :
Explanation :

Any person can have only 1 birthday i.e, the day he was born. And every year we celebrate it's anniversaries.

Q: Which city has become the first Indian city to have its own logo? 1875 0

  • 1
    Bengaluru
    Correct
    Wrong
  • 2
    Hyderabad
    Correct
    Wrong
  • 3
    New Delhi
    Correct
    Wrong
  • 4
    Gujarat
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "Bengaluru"
Explanation :

Answer: A) Bengaluru Explanation: Bengaluru becomes the first Indian city to get its very own logo Much like New York and Singapore, Bengaluru is set to get its own logo, becoming the first Indian city to do so.

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully