Ratio and Proportion Formulas Practice Question and Answer

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Answer : 3. "48%"

Q:

Which of the two numbers should be reduced in the ratio of 15:19 so that the ratio becomes 3: 4?

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  • 1
    9
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    3
    Correct
    Wrong
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Answer : 4. "3"

Q:

If b is the mean proportionate of a and c then find the value of $$ {(a-b)^{3}:(b-c)^{3}}$$ ?

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  • 1
    $$ {a^{3}:b^{3}}$$
    Correct
    Wrong
  • 2
    $$ {a^{2}:b^{2}}$$
    Correct
    Wrong
  • 3
    $$ {b^{2}:c^{2}}$$
    Correct
    Wrong
  • 4
    $$ {a^{3}:c^{3}}$$
    Correct
    Wrong
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Answer : 1. "$$ {a^{3}:b^{3}}$$"

Q:

The ratio of incomes of A and B is 3:5, whereas the ratio of their expenditures is 4:7 respectively. If A and B save Rs. 16,000 and Rs. 26,000 respectively, then what is the different between their expenditures?

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  • 1
    5400
    Correct
    Wrong
  • 2
    6800
    Correct
    Wrong
  • 3
    5000
    Correct
    Wrong
  • 4
    6000
    Correct
    Wrong
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Answer : 4. "6000"

Q:

One number is 50% less than X and another number is 20 percent less than X. What is the ratio of both the numbers?

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  • 1
    2 : 3
    Correct
    Wrong
  • 2
    5 : 8
    Correct
    Wrong
  • 3
    3 : 8
    Correct
    Wrong
  • 4
    3 : 5
    Correct
    Wrong
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Answer : 2. "5 : 8"

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