Maths Practice Question and Answer

Q:

If a = 34, b = c = 33, then the value of a3 + b3 + c3 – 3abc is

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  • 1
    0
    Correct
    Wrong
  • 2
    111
    Correct
    Wrong
  • 3
    50
    Correct
    Wrong
  • 4
    100
    Correct
    Wrong
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Answer : 4. "100"

Q:

In an isosceles triangle, the measure of each of equal sides is 10 cm and the angle between them is 45°. the area of the triangle is

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  • 1
    $$25 \ cm^2 $$
    Correct
    Wrong
  • 2
    $$ {25\over 2}\sqrt { 2}cm^2 $$
    Correct
    Wrong
  • 3
    $$25 \sqrt { 2} \ cm^2$$
    Correct
    Wrong
  • 4
    $$25 \sqrt { 3} cm^2$$
    Correct
    Wrong
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Answer : 2. "$$ {25\over 2}\sqrt { 2}cm^2 $$"

Q:

Joseph's income is decreased by 10%, by what percent the new income has to be increased to bring his income back to the previous level?

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  • 1
    $$12{1\over3}\% $$
    Correct
    Wrong
  • 2
    $$11{1\over9}\% $$
    Correct
    Wrong
  • 3
    10%
    Correct
    Wrong
  • 4
    11%
    Correct
    Wrong
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Answer : 2. "$$11{1\over9}\% $$"

Q:

If $$A={{2^7×3^7}}$$, $$B={{2^7×3^5}}$$ and $$C={{2^8×3^4}}$$, then what is the least common multiple of A, B and C?

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  • 1
    $${{2^7×3^7}}$$
    Correct
    Wrong
  • 2
    $${{2^6×3^7}}$$
    Correct
    Wrong
  • 3
    $${{2^8×3^7}}$$
    Correct
    Wrong
  • 4
    $${{2^9×3^7}}$$
    Correct
    Wrong
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Answer : 3. "$${{2^8×3^7}}$$"

Q:

What is the height of a solid right circular cylinder whose radius is 3 cm and total surface area is 60 πcm2 ?

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  • 1
    3 cm
    Correct
    Wrong
  • 2
    9 cm
    Correct
    Wrong
  • 3
    7 cm
    Correct
    Wrong
  • 4
    5 cm
    Correct
    Wrong
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Answer : 3. "7 cm"

Q:

On a rainy day, 60 cm of rain is recorded in a region. What is the volume of water collected in an open and empty rectangular water tank that measures 12 m (length) ×10 m (width) and 50 cm (depth)?

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  • 1

    120 m3

    Correct
    Wrong
  • 2

    72 m3

    Correct
    Wrong
  • 3

    60 m3 

    Correct
    Wrong
  • 4

    48 m3

    Correct
    Wrong
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Answer : 3. "

60 m3 

"

Q:

A divisor is 15 times the quotient and 3 times the remainder. If the remainder is 40, find the dividend.

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  • 1
    900
    Correct
    Wrong
  • 2
    750
    Correct
    Wrong
  • 3
    1000
    Correct
    Wrong
  • 4
    600
    Correct
    Wrong
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Answer : 3. "1000"

Q:

Directions : The expenses of a country for a particular year is given in Pie–Chart. Read the Pie– Chart and answer the questions.

The percent of the total spending that is spent on health is

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  • 1
    15%
    Correct
    Wrong
  • 2
    20%
    Correct
    Wrong
  • 3
    25%
    Correct
    Wrong
  • 4
    30%
    Correct
    Wrong
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Answer : 1. "15% "

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