Maths Practice Question and Answer

Q: Average age of 12 men is 56 years. Two members of 60 years and 52 years die. What will the average age of the remaining members? 1876 0

  • 1
    54 years
    Correct
    Wrong
  • 2
    55 years
    Correct
    Wrong
  • 3
    56 years
    Correct
    Wrong
  • 4
    58 years
    Correct
    Wrong
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Answer : 3. "56 years "
Explanation :

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Q: The average of goods produced by a company every month is 4000 of average of last 3 month’s production. How many average goods should they produce every month in next 9 months so their monthly average production during a year will be 4375? 1876 1

  • 1
    4500
    Correct
    Wrong
  • 2
    4600
    Correct
    Wrong
  • 3
    4680
    Correct
    Wrong
  • 4
    4710
    Correct
    Wrong
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Answer : 1. "4500"
Explanation :

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Q:

From a point P on the ground the angle of elevation of the top of a 10m tall building is 30°. A flag is hoisted at the top of the building and the angle of elevation of the top of the flagstaff from P is 450. Find the length of the flagstaff (Take √3 = 1.732) 

1876 1

  • 1
    10 √3 m
    Correct
    Wrong
  • 2
    7.32 m
    Correct
    Wrong
  • 3
    10 (√30+2) m
    Correct
    Wrong
  • 4
    10 (√30+1) m
    Correct
    Wrong
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Answer : 2. "7.32 m"

Q:

On dividing a certain number by 342 we get 47 as remainder. If the same number is divided by 18, what will be the remainder?

1875 0

  • 1
    15
    Correct
    Wrong
  • 2
    11
    Correct
    Wrong
  • 3
    17
    Correct
    Wrong
  • 4
    13
    Correct
    Wrong
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Answer : 2. "11"

Q:

The angle of elevation of sun changes from 30 ° to 45 °, the length of the shadow of a pole decreases by 4 meters, the height of the pole is (Assume √3 = 1.732) 

1875 0

  • 1
    3.648 m
    Correct
    Wrong
  • 2
    5.464 m
    Correct
    Wrong
  • 3
    1.464 m
    Correct
    Wrong
  • 4
    9.464 m
    Correct
    Wrong
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Answer : 2. "5.464 m"

Q:

If the length and breadth of a rectangle are increased by 8 % and 12 % respectively, then by what percent does the area of that rectangle increase? 

1874 0

  • 1
    22%
    Correct
    Wrong
  • 2
    24%
    Correct
    Wrong
  • 3
    20%
    Correct
    Wrong
  • 4
    20.96 %
    Correct
    Wrong
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Answer : 4. "20.96 %"

Q:

From the top of an upright pole $$24\sqrt { 3} $$ feet high, the angle of elevation of the top of an upright tower was 600. If the foot of the pole was 60 feet away from the foot of the tower, what tall (in feet) was the tower?

1873 0

  • 1
    $$84\sqrt { 3} $$
    Correct
    Wrong
  • 2
    $$36\sqrt { 3} $$
    Correct
    Wrong
  • 3
    $$44\sqrt { 3} $$
    Correct
    Wrong
  • 4
    $$60\sqrt { 3} $$
    Correct
    Wrong
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Answer : 1. "$$84\sqrt { 3} $$"

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