Question

2.5 is 5% of what?
please explain full formula. ​

Answer 1

Answer:

50

Step-by-step explanation:

As we have all the required values we need, Now we can put them in a simple mathematical formula as below:

STEP 12.5 = 5% × Y

STEP 22.5 =

5

100

× Y

Multiplying both sides by 100 and dividing both sides of the equation by 5 we will arrive at:

STEP 3Y = 2.5 ×

100

5

STEP 4Y = 2.5 × 100 ÷ 5

STEP 5Y = 50

Finally, we have found the value of Y which is 50 and that is our answer.

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Answer 2

• As per the data given in the question, we have to determine the required number.

       Given data- $2.5$ is $5\%$ of what.

       Solution:-

• A percentage is a fraction of an amount expressed as a particular number of hundredths of that amount.

• It is denoted by $1 \% means \frac{1}{100}.$
• We are using the unitary method to calculate the percentage of numbers.
• Fractions can be converted into percentages and vice-versa.

• Percentages are reversible. For example, $30% of 40$ is the same as $40% of 30 .$

          According to the question,  

           $\begin{array}{l}\Rightarrow \frac{5}{100}\times x=2.5 \\\Rightarrow \frac{2.5\times 100}{5} \\\Rightarrow x=50.\end{array}$

       Hence, the value will be $50$ .