Maths Practice Question and Answer

Q:

If $$ {x+{1\over x}=\sqrt{3}}$$ then $$ {x^{48}+x^{378\over7}+x^{726\over11}+x^{60}}$$ is equal to

1404 0

  • 1
    1
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    -1
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
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Answer : 2. "0"

Q:

If (a-b)2 + (b-c)2 + (c-a)2 = 0, then find the value of (a3+b3+c3-3abc) ?

1529 0

  • 1
    2
    Correct
    Wrong
  • 2
    -1
    Correct
    Wrong
  • 3
    0
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 3. "0"

Q:

A person invested Rs 3000 on compound interest for two years. If the rate of interest is the 25 % for the first year and 20 % for the second year. Then find the CI?

1306 0

  • 1
    1550
    Correct
    Wrong
  • 2
    1650
    Correct
    Wrong
  • 3
    1600
    Correct
    Wrong
  • 4
    1500
    Correct
    Wrong
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Answer : 4. "1500"

Q:

Two numbers, of which the first number is 200% of the second number. If the sum of the squares of the first number and the cube of the second number is 5 times the product of both numbers, find the difference between the two numbers?

1175 0

  • 1
    6
    Correct
    Wrong
  • 2
    9
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    7
    Correct
    Wrong
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Answer : 1. "6"

Q:

Find the difference between mean and median in the given data 2.5, 4.6, 7.2, 3.3, 4.9, 5.6, 2.7?

1213 0

  • 1
    0.2
    Correct
    Wrong
  • 2
    0.8
    Correct
    Wrong
  • 3
    1.2
    Correct
    Wrong
  • 4
    2.0
    Correct
    Wrong
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Answer : 1. "0.2"

Q:

If the area of a rhombus is 240 square feet if it's one diagonal is 16 feet, then what is the length (in meters) of the side of the rhombus?

1009 0

  • 1
    5.1 meter
    Correct
    Wrong
  • 2
    4.1 meter
    Correct
    Wrong
  • 3
    5.6 meter
    Correct
    Wrong
  • 4
    6.8 meter
    Correct
    Wrong
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Answer : 1. "5.1 meter "

Q:

Radhe buys two TVs at the same cost price, one of them is sold at $$11 {1\over 9}\% $$ profit and the other at   $$14{2\over 7}\% $$ profit, then the difference between their selling price is Rs $${200\over 7}$$. Find the cost price of the TV.

1133 0

  • 1
    रु 900
    Correct
    Wrong
  • 2
    रु 650
    Correct
    Wrong
  • 3
    रु 700
    Correct
    Wrong
  • 4
    रु 800
    Correct
    Wrong
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Answer : 3. "रु 700 "

Q:

The LCM of two consecutive even numbers is 144, find the numbers?

1716 0

  • 1
    16 and 18
    Correct
    Wrong
  • 2
    14 and 16
    Correct
    Wrong
  • 3
    18 and 20
    Correct
    Wrong
  • 4
    22 and 24
    Correct
    Wrong
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Answer : 1. "16 and 18 "

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