Maths Questions and Answers Practice Question and Answer

Q:

A basket consists of five blue balls, four green balls, two red balls and three yellow balls. Three balls are drawn at random. What is the probability that at least one blue ball is drawn?

1355 0

  • 1
    $$ {8\over13}$$
    Correct
    Wrong
  • 2
    $$ {9\over13}$$
    Correct
    Wrong
  • 3
    $$ {10\over13}$$
    Correct
    Wrong
  • 4
    $$ {11\over13}$$
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 3. "$$ {10\over13}$$"

Q: A and B together can complete a work in 10 days. A alone can do it in 40 days. In how many days B alone can complete it? 3364 4

  • 1
    \({40\over3}\)
    Correct
    Wrong
  • 2
    10
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    30/7
    Correct
    Wrong
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Answer : 1. "\({40\over3}\)"

Q: Ratan can complete a work in \(5 {1 \over 2}\) days while Rupesh can complete it in \(10 {1 \over 2}\) days. In how many days can they both complete it working on it together? 3823 2

  • 1
    \(3 {39 \over 64 }\)
    Correct
    Wrong
  • 2
    \(4 {39 \over 64 }\)
    Correct
    Wrong
  • 3
    \(5 {39 \over 64 }\)
    Correct
    Wrong
  • 4
    \(6 {39 \over 64 }\)
    Correct
    Wrong
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Answer : 1. "\(3 {39 \over 64 }\) "

Q: Ram can complete ¼ th part of work in 8 days and Shyam can complete 2/4 th of the work in 6 days and Naresh can complete ¾th the work in 12 days. In how many days can they together complete it? 2635 1

  • 1
    \(6 {11 \over 17 }\)
    Correct
    Wrong
  • 2
    \(5 {11 \over 17 }\)
    Correct
    Wrong
  • 3
    \(8 {11 \over 17 }\)
    Correct
    Wrong
  • 4
    \(7 {11 \over 17 }\)
    Correct
    Wrong
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Answer : 2. "\(5 {11 \over 17 }\)"

Q: A, B and C can complete a work in 10, 15 and 20 days respectively. A and B start it together. B is replaced by C after 2 days. A leave it after one more day. In how many days work was completed? 2563 0

  • 1
    13
    Correct
    Wrong
  • 2
    \(13 {1 \over 13 }\)
    Correct
    Wrong
  • 3
    \(18 {4 \over 3 }\)
    Correct
    Wrong
  • 4
    18
    Correct
    Wrong
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Answer : 2. " \(13 {1 \over 13 }\)"

Q: A complete a work at four times the speed than C. If together they can complete a work in 20 days, in how many days can A alone complete it? 3231 0

  • 1
    25
    Correct
    Wrong
  • 2
    100
    Correct
    Wrong
  • 3
    75
    Correct
    Wrong
  • 4
    80
    Correct
    Wrong
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Answer : 1. "25"

Q: Shyam can work at thrice the speed than Naresh. If together they can complete a work in 32 days, in how many days can Naresh alone complete it? 3816 0

  • 1
    120
    Correct
    Wrong
  • 2
    128
    Correct
    Wrong
  • 3
    124
    Correct
    Wrong
  • 4
    144
    Correct
    Wrong
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Answer : 2. "128"

Q: A single person takes 4 minutes to type a page, if from 12 noon to 1.00 pm., 1080 pages are to be typed, how many persons should be employed on this job? 4507 0

  • 1
    108
    Correct
    Wrong
  • 2
    60
    Correct
    Wrong
  • 3
    90
    Correct
    Wrong
  • 4
    72
    Correct
    Wrong
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Answer : 4. "72"

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