Maths Practice Question and Answer

Q:

If P : Q = 4 : 5 and P : R =2 : 3, then what is 3P : 4Q : 5R?

2043 0

  • 1
    6 : 10 : 15
    Correct
    Wrong
  • 2
    4 : 9 : 11
    Correct
    Wrong
  • 3
    8 : 12 : 17
    Correct
    Wrong
  • 4
    3 : 5 : 7
    Correct
    Wrong
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Answer : 1. "6 : 10 : 15"

Q:

The smallest number of five digits exactly divisible by 476

2039 0

  • 1
    47600
    Correct
    Wrong
  • 2
    10000
    Correct
    Wrong
  • 3
    10476
    Correct
    Wrong
  • 4
    10472
    Correct
    Wrong
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Answer : 4. "10472"

Q:

In a college Anjana scored 80 marks out of 150 in History and 95 marks out of 120 in English. If she wants to score 70% marks in 3 subjects, find the minimum marks she should score in Geography out of 100.

2038 0

  • 1
    70
    Correct
    Wrong
  • 2
    55
    Correct
    Wrong
  • 3
    76
    Correct
    Wrong
  • 4
    85
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 5. "None of these"

Q:

What will be the value of x3+y3+z3-3xyz when x+y+z=9 and x2+y2+z2=31?

2037 0

  • 1
    54
    Correct
    Wrong
  • 2
    9
    Correct
    Wrong
  • 3
    27
    Correct
    Wrong
  • 4
    3
    Correct
    Wrong
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Answer : 1. "54"

Q:

Divided ₹ 1250 among A, B, C so that A gets   $$ {2\over9}$$ of B’s share and C gets   $${3\over4}$$ of A’s share,

2037 0

  • 1
    ₹ 200, ₹ 800, ₹ 250
    Correct
    Wrong
  • 2
    ₹ 200, ₹ 900, ₹ 150
    Correct
    Wrong
  • 3
    ₹ 150, ₹ 800, ₹ 300
    Correct
    Wrong
  • 4
    ₹ 200, ₹ 900, ₹ 75
    Correct
    Wrong
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Answer : 2. "₹ 200, ₹ 900, ₹ 150"

Q:

Directions : What should come in place of the question mark (?) in the following number series? 

19 38 ? 228 684 1368 

2036 0

  • 1
    106
    Correct
    Wrong
  • 2
    114
    Correct
    Wrong
  • 3
    121
    Correct
    Wrong
  • 4
    98
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 2. "114"

Q:

Three bottles of equal capacity are containing a mixture of milk and water in ratio 1: 3, 3: 5 and 11: 5 respectively. These three bottles are emptied into a large bottle. What is the ratio of milk and water respectively in this large bottle?

2035 0

  • 1
    21: 16
    Correct
    Wrong
  • 2
    9: 7
    Correct
    Wrong
  • 3
    7: 9
    Correct
    Wrong
  • 4
    27: 37
    Correct
    Wrong
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Answer : 3. "7: 9"

Q: The ages of Sunitha and Pranitha are 40 years and 60 years, respectively. How many years before the ratio of their ages was 3 : 5? 2033 0

  • 1
    10 years
    Correct
    Wrong
  • 2
    15 years
    Correct
    Wrong
  • 3
    18 years
    Correct
    Wrong
  • 4
    24 years
    Correct
    Wrong
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Answer : 1. "10 years"
Explanation :

Answer: A) 10 years Explanation: Given the ages of Sunitha and Pranitha are 40 years and 60 years. Let before 'm' years, their ages be in the ratio of 3 : 5 ATQ, 40-m60-m = 35 => 200 - 5m = 180 - 3m =>2m = 20 => m = 10 years.

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