GATE Practice Question and Answer

Q: In which of the following organelles does photosynthesis take place? 1773 0

  • 1
    Miochondria
    Correct
    Wrong
  • 2
    Chloroplast
    Correct
    Wrong
  • 3
    Central Vacuole
    Correct
    Wrong
  • 4
    Ribosome
    Correct
    Wrong
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Answer : 2. "Chloroplast"
Explanation :

Answer: B) Chloroplast Explanation: Chloroplasts use energy from light to transform carbon dioxide and water into sugar and oxygen. A green pigment located in membranes within the chloroplasts of plants and algae and in the membranes of certain prokaryotes.

Q: Find the Missing number in the given number series? 5, 9, 15, 23, ?, 45 2129 0

  • 1
    33
    Correct
    Wrong
  • 2
    29
    Correct
    Wrong
  • 3
    31
    Correct
    Wrong
  • 4
    35
    Correct
    Wrong
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Answer : 1. "33"
Explanation :

Answer: A) 33 Explanation: The given series follows a pattern that, +4, +6, +8, +10, +12... 5 5 + 4 = 9 9 + 6 = 15 15 + 8 = 23 23 + 10 = 33 33 + 12 = 45   Hence, the missing number in the series is 33.

Q: Simple interest on a certain sum at 7% per annum for 4 years is Rs. 2415. What will be the compound interest on the same principal at 4% per annum in two years? 1359 0

  • 1
    Rs. 704
    Correct
    Wrong
  • 2
    Rs. 854
    Correct
    Wrong
  • 3
    Rs. 893
    Correct
    Wrong
  • 4
    Rs. 914
    Correct
    Wrong
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Answer : 1. "Rs. 704"
Explanation :

Answer: A) Rs. 704 Explanation: We know that, S.I. = PTR100⇒ P = S.I x 100T x RAnd also,C.I = P1 + R100n- 1 From given data, P = Rs. 8625 Now, C.I  = 86251+41002-1= 862526252-1= 8625676625-1= 8625 x 51625C.I = Rs. 703.80

Q: Find the next number in the given number series? 0, 3, 8, 15, 24, ? 1726 0

  • 1
    35
    Correct
    Wrong
  • 2
    37
    Correct
    Wrong
  • 3
    34
    Correct
    Wrong
  • 4
    36
    Correct
    Wrong
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Answer : 1. "35"
Explanation :

Answer: A) 35 Explanation: Here the given number series is 0, 3, 8, 15, 24, ? The next number in the given series can be found such a way that the number series follows a pattern, 22 - 4 = 032 - 6 = 342  - 8 = 852 - 10 = 1562 - 12 = 2472 - 14 = 35Hence, the next number in the iven series is 35.

Q: The ratio of Pens and Pencils in a shop is 3 : 2 respectively. The average number of Pens and Pencils is 180. What is the number of Pencils in the shop? 2472 0

  • 1
    444
    Correct
    Wrong
  • 2
    344
    Correct
    Wrong
  • 3
    244
    Correct
    Wrong
  • 4
    144
    Correct
    Wrong
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Answer : 4. "144"
Explanation :

Answer: D) 144 Explanation: Given ratio of pens and pencils = 3 :2 Number of Pens = 3x Number of Pencils = 2x Average number of pencils & Pens = 3x + 2x2 = 180 5x = 360 => x = 72 Hence, the number of pencils = 2x = 72 x 2 = 144.

Q: which of the following are chemical changes? 1452 0

  • 1
    Cooking of Food
    Correct
    Wrong
  • 2
    Digestion of Food
    Correct
    Wrong
  • 3
    Freezing of water
    Correct
    Wrong
  • 4
    Water is heated up
    Correct
    Wrong
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Answer : 1. "Cooking of Food"
Explanation :

Answer: A) A & B Explanation: A) Cooking of Food  ------ Chemical Change B) Digestion of Food ----- Chemical Change C) Freezing of water ----- Physical Change D) Water is heated up ---- Physical Change because here the chemical composition of the substance changes in A & B only.   Since we know that, If the chemical composition is changing then it is a chemical change and if the chemical composition is remaining the same, then it is a physical change.

Q: What travels around the world but stays in one spot? 1690 0

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Answer :
Explanation :

Therefore the answer for What travels around the world but stays in one spot is STAMP or any other thing that acts as a stamp does. Ex. the letter in the envelope etc...   Since, Several things have the possibility, but the word travel evokes that it would move.

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Answer :
Explanation :

That 8 letter word is Whatsapp (a messenger app) First four letters:   WHAT a question Letters 2,3,4:     HAT protects our headLetters 5,6,7:   SAP an IT companyLetters 7,8:    PP same.

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