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If 20% of a = b, then b% of 20 is the same as:

14% of a
25% of a
320% of a
4None of these

Answer:- 4

Explanation:-

Solution:

\begin{aligned} 20 % of a = b \Rightarrow \frac{20}{100} a = b . \\ ∴ b % of 20 = (\frac{b}{100} \times 20) \\ = (\frac{20}{100} a \times \frac{1}{100} \times 20) \\ = \frac{4}{100} a = 4 % of a . \end{aligned}

$\eqalign{ & 20\% \,{\text{of}}\,a = b \Rightarrow \frac{{20}}{{100}}a = b. \cr & \therefore b\% \,{\text{of}}\,20 = \left( {\frac{b}{{100}} \times 20} \right) \cr & = \left( {\frac{{20}}{{100}}a \times \frac{1}{{100}} \times 20} \right) \cr & = \frac{4}{{100}}a = 4\% \,{\text{of}}\,a. \cr}$

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", "dateCreated": "7/24/2019 10:09:12 AM", "author": { "@type": "Person", "name": "Nitin Sir" } }, "suggestedAnswer": { "@type": "Answer", "text": "

Solution:

\begin{aligned} 20 % of a = b \Rightarrow \frac{20}{100} a = b . \\ ∴ b % of 20 = (\frac{b}{100} \times 20) \\ = (\frac{20}{100} a \times \frac{1}{100} \times 20) \\ = \frac{4}{100} a = 4 % of a . \end{aligned}

$\eqalign{ & 20\% \,{\text{of}}\,a = b \Rightarrow \frac{{20}}{{100}}a = b. \cr & \therefore b\% \,{\text{of}}\,20 = \left( {\frac{b}{{100}} \times 20} \right) \cr & = \left( {\frac{{20}}{{100}}a \times \frac{1}{{100}} \times 20} \right) \cr & = \frac{4}{{100}}a = 4\% \,{\text{of}}\,a. \cr}$ ", "dateCreated": "7/24/2019 10:09:12 AM" } }

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