Maths Practice Question and Answer

Q:

The number of girls in a class is 20% more than the number of boys. There are total 66 students in this class. If 4 more girls are admitted in the class, then the ratio of the number of boys and girls will be?

1167 0

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

Q:

For any real value of $${\sqrt {secθ-1}\over \sqrt {secθ+1} }=?$$

1167 0

  • 1
    cotθ-cosecθ
    Correct
    Wrong
  • 2
    secθ-tanθ
    Correct
    Wrong
  • 3
    cosecθ-cotθ
    Correct
    Wrong
  • 4
    tanθ-secθ
    Correct
    Wrong
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Answer : 3. "cosecθ-cotθ"

Q:

In a group of 35 people, 23 of them like coffee, 24 of them like tea and each person likes at least one of the drinks. How many like both? 

1166 0

  • 1
    12
    Correct
    Wrong
  • 2
    35
    Correct
    Wrong
  • 3
    47
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
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Answer : 1. "12"

Q:

If a = 2·361, b = 3·263 and c = 5·624, then the value of a3 + b3 – c3 + 3abc is

1166 0

  • 1
    35·621
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    19·277
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 2. "0"

Q:

Given that √4096 = 64, the value of √4096 + √40.96 +√0.004096 is-

1164 0

  • 1
    70.4
    Correct
    Wrong
  • 2
    70.464
    Correct
    Wrong
  • 3
    71.104
    Correct
    Wrong
  • 4
    71.4
    Correct
    Wrong
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Answer : 2. "70.464"
Explanation :

Given Exp. = √4096 + √40.96 +√0.004096

= 64 + 6.4 + 0.064

= 70.464

Q:

ABCD is a cycle quadrilateral and BC is diameter of the related circle on which A and D also lie. ∠BCA =190 and ∠CAD=320. What is the measure of ∠ACD?

1163 0

  • 1

    410

    Correct
    Wrong
  • 2

    380

    Correct
    Wrong
  • 3

    400

    Correct
    Wrong
  • 4

    390

    Correct
    Wrong
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Answer : 4. "

390

"

Q:

The sum of the two - digit number is 6 and the number and its flip (digits written in reverse order) both are multiples of 3. If the difference between them is 36, then which of the following is the required number and its flip? 

1163 0

  • 1
    51 or 15
    Correct
    Wrong
  • 2
    42 or 24
    Correct
    Wrong
  • 3
    33 or 33
    Correct
    Wrong
  • 4
    60 or 06
    Correct
    Wrong
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Answer : 1. "51 or 15"

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Answer : 1. "₹ 30,000 crore "

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