Practice Question and Answer

Q: Choose or find odd number: 324 , 244 , 136 , 352 , 514 2374 0

  • 1
    324
    Correct
    Wrong
  • 2
    244
    Correct
    Wrong
  • 3
    136
    Correct
    Wrong
  • 4
    352
    Correct
    Wrong
  • 5
    514
    Correct
    Wrong
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Answer : 1. "324"

Q:

Find the number of triangles in the given figure.

2374 0

  • 1
    11
    Correct
    Wrong
  • 2
    14
    Correct
    Wrong
  • 3
    16
    Correct
    Wrong
  • 4
    More than 22
    Correct
    Wrong
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Answer : 4. "More than 22"

Q:

The value of $$ {5-[2+3(2-2× 2 +5)-5]÷5}\over {4×4÷4}of(4+4÷4 of 4)$$ is:

2374 0

  • 1
    $$ {3}{3\over 16}$$
    Correct
    Wrong
  • 2
    $$ {4}{3\over 80}$$
    Correct
    Wrong
  • 3
    $$ {2\over 5}$$
    Correct
    Wrong
  • 4
    $$ {7}{3\over 5}$$
    Correct
    Wrong
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Answer : 2. "$$ {4}{3\over 80}$$"

Q:

H5N1 adds to influenza? 

2373 2

  • 1
    Goat Flu
    Correct
    Wrong
  • 2
    Bird Flu
    Correct
    Wrong
  • 3
    Horse Flu
    Correct
    Wrong
  • 4
    Cow Flu
    Correct
    Wrong
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Answer : 2. "Bird Flu "

Q: A letter is takenout at random from 'ASSISTANT'  and another is taken out from 'STATISTICS'. The probability that they are the same letter is : 2373 0

  • 1
    35/96
    Correct
    Wrong
  • 2
    19/90
    Correct
    Wrong
  • 3
    19/96
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "19/90"
Explanation :

Answer: B) 19/90 Explanation: ASSISTANT→AAINSSSTT STATISTICS→ACIISSSTTT Here N and C are not common and same letters can be A, I, S, T. Therefore  Probability of choosing A =  2C19C1×1C110C1 = 1/45   Probability of choosing I = 19C1×2C110C1 = 1/45 Probability of choosing S = 3C19C1×3C110C1 = 1/10 Probability of choosing T = 2C19C1×3C110C1 = 1/15 Hence, Required probability =   145+145+110+115= 1990

Q:

Alcohol and water in two vessels A and B are in the ratio 5:3 and 5:4 respectively. In what ratio, the liquid of in both the vessels be mixed to obtain a new mixture in vessel C in the ratio 7:5?

2373 0

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

Q: In how many different ways can the letters of the word 'OPTICAL' be arranged so that the vowels always come together? 2373 0

  • 1
    830
    Correct
    Wrong
  • 2
    615
    Correct
    Wrong
  • 3
    720
    Correct
    Wrong
  • 4
    915
    Correct
    Wrong
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Answer : 3. "720"

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