Practice Question and Answer

Q: One card is drawn from a pack of 52 cards, each of the 52 cards being equally likely to be drawn find the probability the card drawn is red. 1271 0

  • 1
    2/3
    Correct
    Wrong
  • 2
    1/2
    Correct
    Wrong
  • 3
    1/52
    Correct
    Wrong
  • 4
    13/51
    Correct
    Wrong
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Answer : 2. "1/2"
Explanation :

Answer: B) 1/2 Explanation: We know that: When one card is drawn from a pack of 52 cards The numbers of possible outcomes n(s) = 52 We know that there are 26 red cards in the pack of 52 cards⇒ The numbers of favorable outcomes n(E) = 26 Probability of occurrence of an event: P(E)=Number of favorable outcomes/Numeber of possible outcomes=n(E)/n(S) ∴ required probability = 26/52 = 1/2.

Q: Who has been appointed as the Election Commissioner of India  ? 1436 0

  • 1
    S. Y. Quraishi
    Correct
    Wrong
  • 2
    Sunil Arora
    Correct
    Wrong
  • 3
    H. S. Brahma
    Correct
    Wrong
  • 4
    Nasim Zaidi
    Correct
    Wrong
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Answer : 2. "Sunil Arora"
Explanation :

Answer: B) Sunil Arora Explanation:

Q: With which Bank, Solar energy services company Freyr Energy has tied up to offer term loans ? 1357 0

  • 1
    Axis Bank
    Correct
    Wrong
  • 2
    United Bank
    Correct
    Wrong
  • 3
    SBI
    Correct
    Wrong
  • 4
    Union Bank
    Correct
    Wrong
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Answer : 1. "Axis Bank"
Explanation :

Answer: A) Axis Bank Explanation:

Q: In what time a 360 m. long train moving at the speed of 44 km/hr will cross a 140 m. long bridge ? 1393 0

  • 1
    36 sec
    Correct
    Wrong
  • 2
    39 sec
    Correct
    Wrong
  • 3
    41 sec
    Correct
    Wrong
  • 4
    43 sec
    Correct
    Wrong
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Answer : 3. "41 sec"
Explanation :

Answer: C) 41 sec Explanation: Speed = 44 kmph x 5/18 = 110/9 m/s We know that, Time = distance/speed Time = (360 + 140) / (110/9) = 500 x 9/110 = 41 sec.

Q: The breadth of a rectangular field is 75% of its length. If perimeter of the field is 1050 m, what will be th area of field ? 1399 0

  • 1
    65700 sq.m
    Correct
    Wrong
  • 2
    54500 sq.m
    Correct
    Wrong
  • 3
    78700 sq.m
    Correct
    Wrong
  • 4
    67500 sq.m
    Correct
    Wrong
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Answer : 4. "67500 sq.m"
Explanation :

Answer: D) 67500 sq.m Explanation: Let the length be 'l' and breadth be 'b'. b = l × 3/4__________(a) 2(l+b) = 1050 l+b = 525___________(b) From equations (a) and (b), l = 300m, b = 225 m Area = l × b = 300 × 225 = 67500 sq.m.

Q: What is the Probability of all cars not clashing each other ? 1574 0

  • 1
    1/8
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    1/4
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 3. "1/4"
Explanation :

Answer: C) 1/4 Explanation: Non collision can happen only when all the cars move in same direction. That is either all cars moving in clockwise direction or all cars moving in anti clockwise direction.P(all cars not colliding) = P(all cars moving in the same direction) = P(all cars moving in clockwise direction)  +  P(all cars moving in anticlockwise direction) = [p(A --> C) x p(C --> B) x p(B --> A)]  +  [p(A --> B) x p(B --> C) x p(C --> A)] = [1/2 x 1/2 x 1/2] + [1/2 x 1/2 x 1/2] = 1/8 + 1/8 = 1/4

Q: A man can row 8 kmh in still water. If the river is running at 2 kmh, it takes 4 hrs more upstream than to go downstream for the same distance. Then the distance is given by 1118 0

  • 1
    54 kms
    Correct
    Wrong
  • 2
    32 kms
    Correct
    Wrong
  • 3
    45 kms
    Correct
    Wrong
  • 4
    60 kms
    Correct
    Wrong
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Answer : 4. "60 kms"
Explanation :

Answer: D) 60 kms Explanation: Let the distance be d.  d8-2-d8+2 = 4   => 2d = 120    => d = 60 kms.

Q: Statements :-    All kids are God.   No God is a Human.   Some Human are Son.   All Son are Men.   Conclusions :-    (a) Some Son are not God.   (b) Some Men are Human. 2442 0

  • 1
    Only A follows
    Correct
    Wrong
  • 2
    Only B follows
    Correct
    Wrong
  • 3
    Both (A) and (B) follows
    Correct
    Wrong
  • 4
    A) and (B) follows D)
    Correct
    Wrong
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Answer : 3. "Both (A) and (B) follows"
Explanation :

Answer: C) Both (A) and (B) follows Explanation:

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