Maths Practice Question and Answer

Q:

A 240 m long train crosses a 300 m long platform in 27 seconds. What is the speed of the train in km/h?

2059 0

  • 1
    36
    Correct
    Wrong
  • 2
    20
    Correct
    Wrong
  • 3
    66
    Correct
    Wrong
  • 4
    60
    Correct
    Wrong
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Answer : 1. "36"

Q: A fruit seller buys lemons two for Rs 1 and sells at 5 for Rs 3 rate. Find his profit percent. 2058 0

  • 1
    10
    Correct
    Wrong
  • 2
    15
    Correct
    Wrong
  • 3
    20
    Correct
    Wrong
  • 4
    25
    Correct
    Wrong
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Answer : 3. "20 "

Q:

Direction (66-70): What should come in place of the question mark(?) in the following number series?

8, 39, 155, 464, ?

2058 0

  • 1
    231
    Correct
    Wrong
  • 2
    463
    Correct
    Wrong
  • 3
    1391
    Correct
    Wrong
  • 4
    927
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 4. "927"

Q:

The average of five numbers is 49. The average of the first and the second numbers is 48 and the average of fourth and fifth numbers is 28. What is the third number?

2058 0

  • 1
    92
    Correct
    Wrong
  • 2
    91
    Correct
    Wrong
  • 3
    95
    Correct
    Wrong
  • 4
    Cannot determined
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 5. "None of these"

Q: A pole is crossed by a train in 25 seconds and 360 metre. Long platform is crossed in 37 seconds. Find length of train? 2056 0

  • 1
    600 metre
    Correct
    Wrong
  • 2
    750 metre
    Correct
    Wrong
  • 3
    800 metre
    Correct
    Wrong
  • 4
    900 metre
    Correct
    Wrong
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Answer : 2. "750 metre"

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Answer : 2. "24"

Q: If radius and height of a cylinder increase by 20% and15% respectively. then what is the % change in curved surface area? 2055 0

  • 1
    41%
    Correct
    Wrong
  • 2
    38%
    Correct
    Wrong
  • 3
    33%
    Correct
    Wrong
  • 4
    44%
    Correct
    Wrong
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Answer : 2. "38%"
Explanation :

Answer: B) 38% Explanation: % Change in Curved Surface Area is given by  %Change in radius + %Change in height + %Change in radius × %Change in height 100   ⇒+20 + 15 + 20×15100 = 38%

Q:

Which of the following points lies on the line 5x + 4y = 2? 

2054 0

  • 1
    (-2,3)
    Correct
    Wrong
  • 2
    (2,-3)
    Correct
    Wrong
  • 3
    ( 2,3 )
    Correct
    Wrong
  • 4
    (-2,-3)
    Correct
    Wrong
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Answer : 1. "(-2,3) "

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