Aptitude Practice Question and Answer

Q:

The area ( in m² ) of the square which has the same perimeter as a rectangle whose length is 48 m and is 3 times its breadth is : 

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  • 1
    1600
    Correct
    Wrong
  • 2
    1042
    Correct
    Wrong
  • 3
    1000
    Correct
    Wrong
  • 4
    1024
    Correct
    Wrong
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Answer : 4. "1024 "

Q:

The value of $$ cos {20^o} cos {40^o}cos {60^o}cos {80^o}$$ is:

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  • 1
    $$ {1\over 15}$$
    Correct
    Wrong
  • 2
    $$ {1\over 16}$$
    Correct
    Wrong
  • 3
    $$ {1\over 12}$$
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "$$ {1\over 16}$$"

Q:

The average of ten numbers is 72. The average of the first four numbers is 69 and that of the next three number is 74. The 8th number is 6 more than the 9th number and 12 more than the 10th number. What is the average of the 8th and 9th numbers?

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  • 1
    76
    Correct
    Wrong
  • 2
    76.5
    Correct
    Wrong
  • 3
    77
    Correct
    Wrong
  • 4
    77.5
    Correct
    Wrong
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Answer : 3. "77"

Q:

Two cones have their heights in the ratio 1:3 and the radii of their bases in the ratio 3:1. Find the ratio of their volumes?

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

Q:

A rational number between $${3\over4} $$ and $${3\over8} $$ is :

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  • 1
    $${5\over9}$$
    Correct
    Wrong
  • 2
    $$1{9\over16}$$
    Correct
    Wrong
  • 3
    $${7\over9}$$
    Correct
    Wrong
  • 4
    $${7\over3}$$
    Correct
    Wrong
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Answer : 1. "$${5\over9}$$"

Q:

If $${secθ+tanθ\over secθ-tanθ}=2{51\over79}$$, then the value of sinθ is equal to:

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  • 1
    $${35\over72}$$
    Correct
    Wrong
  • 2
    $${36\over72}$$
    Correct
    Wrong
  • 3
    $${91\over144}$$
    Correct
    Wrong
  • 4
    $${65\over144}$$
    Correct
    Wrong
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Answer : 4. "$${65\over144}$$"

Q:

The compound interest on 12000 for 9 months at 20 % per annum , interest being compounded quarterly is 

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  • 1
    ₹ 2136
    Correct
    Wrong
  • 2
    ₹ 1750
    Correct
    Wrong
  • 3
    ₹ 1891.50
    Correct
    Wrong
  • 4
    ₹ 2089.70
    Correct
    Wrong
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Answer : 3. "₹ 1891.50 "

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