By how much is 80% of 40 greater than \(4\over5\) of 25?
12
Percentage Calculation: 80% of 40
First, we need to calculate the value represented by 80% of 40.
To find the percentage of a number, we convert the percentage into a decimal or a fraction and then multiply it by the number.
Converting 80% to a decimal gives us \(0.80\).
The calculation is as follows: \(0.80 \times 40\).
Performing the multiplication: \(0.8 \times 40 = 32\).
Alternatively, we can use fractions. 80% is equal to \(\frac{80}{100}\), which simplifies to \(\frac{4}{5}\).
Using the fraction form: \(\frac{4}{5} \times 40 = \frac{4 \times 40}{5} = \frac{160}{5} = 32\).
So, 80% of 40 is 32.
Fraction Calculation: \( \frac{4}{5} \) of 25
Next, we calculate the value of \( \frac{4}{5} \) of 25.
This involves multiplying the fraction \(\frac{4}{5}\) by the number 25.
The calculation is: \(\frac{4}{5} \times 25\).
We can simplify this calculation:
\(\frac{4}{5} \times 25 = 4 \times \frac{25}{5} = 4 \times 5 = 20\).
Therefore, \( \frac{4}{5} \) of 25 is 20.
Difference Calculation: Comparison
The question asks by how much 80% of 40 is greater than \( \frac{4}{5} \) of 25.
To find this, we need to determine the difference between the two values we calculated.
Difference = (Value of 80% of 40) - (Value of \( \frac{4}{5} \) of 25)
Difference = \(32 - 20\).
Difference = \(12\).
Summary of Calculation
The result of the comparison shows that 80% of 40 (which is 32) is 12 greater than \( \frac{4}{5} \) of 25 (which is 20).
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Important Questions from Percentage
In an examination, 25% of the candidates failed in Mathematics and 12% failed in English. If 10% of the candidates failed in both the subjects and 292 candidates passed in both the subjects, which one of the following is the number of total candidates appeared in the examination?
What is the value of 9% of 5500 + 2.4% of 1100 - 40% of 1600?
Population of a village is 7960 in which 4660 are female. If in that village 60% are literate in which 70% female are literate, then what is the number of literate male ?
In an examination, Ram obtained 20 % more than Ashok but 10% less than Rajesh. If the marks obtained by Ashok is 1080. Then the Percentage marks obtained by Rajesh if the full marks is 2000 ;
A student appeared in 6 papers. The maximum marks are the same for each paper. His marks in these papers are in the proportion of 5 : 6 : 7 : 8 : 9 : 10. Overall he scored 60%. In how many number of papers did he score less than 60% of the maximum marks?
