Question

Evaluate 20% of 450 - 16% of 50 - 25% 200​

Answer 1

Refer the attachment

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Answer 2

Given: $20\% \ of\ 450 - 16\% \ of\ 50 - 25\%\ of\ 200$​.

We have to evaluate the above equation.

• As we know that a percentage is a fraction of an amount is expressed as a particular number of hundredths of that amount.
• It is denoted by a symbol(%).
• For example, $5$% means$\frac{5}{100}$.
• By using the unitary method we are calculating the percentage of numbers.
• As we know fractions can be converted into percentages and vice-versa.
• And percentages are reversible.  
• For example, $50 \% of 60$ is the same as$60 \%\ of\ 50$.

We are solving in the following way:

We have,

$20\% \ of\ 450 - 16\% \ of\ 50 - 25\%\ of\ 200$​.

$=\frac{20}{100} \times450-\frac{16}{100} \times50-\frac{25}{100}\times200\\\\= 90-8-50\\=32$

Hence, after evaluation we get, the solution of the given equation is$32$.