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Percentage Problems and Calculations

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Questions and Answers

What is the result of subtracting a from a%?

It is always greater than a.
It results in a remaining constant.
It is equal to a - a x (a/100). (correct)
It is equal to a/2.

What is the original number if decreasing it by 10% and increasing that result by 10% yields a value 10 less than the original?

3000 (correct)
500
4000
2500

What percent of a day do 3 hours represent?

13.75%
10%
12.5% (correct)
15%

If Anuj saves Rs. 1,650 after spending 15% on house rent and 30% on household expenses, how would you calculate his total income?

<p>Total income = Savings / (1 - (15% + 30%)) (D)</p> Signup and view all the answers

What is the result of the equation 40 - 40 x 40%?

<p>24 (B)</p> Signup and view all the answers

Flashcards

Percentage decrease

A reduction in a quantity expressed as a percent of the original value.

Percent increase followed by decrease

A value is increased by a percentage, then decreased by the same percentage. The final value will be less than the original.

Finding a fraction of a day

To determine the portion of a day represented by a given time interval in percent.

Calculating income from expenses

Determine the total income if a certain amount is saved and expenses are expressed as percentages of the income.

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Percentage decrease problem

A number is decreased by 10%, and then increased by 10% resulting in a final amount 10 less than the original number. Find the original number.