Practice Question and Answer

Q:

If the difference between the roots of the equation Ax2+BX+C = 0 is 4, then which of the following is TRUE?

2354 0

  • 1
    $$B^2 - 16A^2 = 4AC + 4B^2 $$
    Correct
    Wrong
  • 2
    $$B^2 - 10A^2 = 4AC + 6A^2$$
    Correct
    Wrong
  • 3
    $$B^2 - 8A^2 = 4AC + 10A^2 $$
    Correct
    Wrong
  • 4
    $$B^2 - 16A^2 = 4A^C + 8B^2$$
    Correct
    Wrong
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Answer : 2. "$$B^2 - 10A^2 = 4AC + 6A^2$$"

Q:

Choose the alternative which resembles the mirror image of the given combination.

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  • 1
    2
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
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Answer : 2. "1"

Q:

Which firm has become the latest to join the Unicorn Club?

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  • 1
    Swiggy
    Correct
    Wrong
  • 2
    Icertis
    Correct
    Wrong
  • 3
    Zomato
    Correct
    Wrong
  • 4
    Oyo
    Correct
    Wrong
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Answer : 2. "Icertis"

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Answer : 2. "B and E"

Q:

Which of the following statements is not correct about Sunder Lal Bahuguna?

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  • 1
    He is an eminent environmentalist
    Correct
    Wrong
  • 2
    He was awarded Padma Bhushan in 2009
    Correct
    Wrong
  • 3
    He started the ‘Chipko Movement’ to create awareness of deforestation
    Correct
    Wrong
  • 4
    He was elected to Lok Sabha from Uttarkashi in Uttarakhand
    Correct
    Wrong
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Answer : 4. "He was elected to Lok Sabha from Uttarkashi in Uttarakhand"

Q: The average age of A and B, 2 years ago was 26. If the age of A, 5 years hence is 40 yrs, and B is 5 years younger to C, then find the difference between the age of A and C? 2353 0

  • 1
    11 yrs
    Correct
    Wrong
  • 2
    9 yrs
    Correct
    Wrong
  • 3
    7 yrs
    Correct
    Wrong
  • 4
    13 yrs
    Correct
    Wrong
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Answer : 2. "9 yrs"
Explanation :

Answer: B) 9 yrs Explanation: Let the present ages of A and B be 'x' and 'y' respectively From the given data,  [(x-2) + (y-2)]/2 = 26 => x+y = 56 But given the age of A, 5 years hence is 40 yrs => present age of A = 40 - 5 = 35 yrs => x = 35 => y = 56 - 35 = 21 => Age of B = 21 yrs Given B is 5 years younger to C, => Age of C = 21 + 5 = 26 yrs => Required Difference between ages of A and C = 35 - 26 = 9 yrs.

Q: How many numbers with distinct digits are possible product of whose digits is 18? 2353 0

  • 1
    12
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    6
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
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Answer : 2. "8"
Explanation :

Answer: B) 8 Explanation: Two digit numbers: The two digits can be 2 and 9: Two possibilities 29 and 92.Three-digit numbers: The three digits can be 1, 2 and 9 => 3! Or 6 possibilities.We cannot have three digits as (3, 3, 2) as the digits have to be distinct.We cannot have numbers with 4 digits or more without repeating the digits.So, there are totally 8 numbers.

Q:

Find the missing number?

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  • 1
    5
    Correct
    Wrong
  • 2
    19
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
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Answer : 4. "12"

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