Question

if 15% of a =20% of b ,then a: b =? please solve and send quickly

Answer 1

Answer:

$a:b = 4:3$

Step-by-step explanation:

$Given \: 15\% of \: a = 20\% of \: b$

$15\% \times \: a = 20\% \times \: b$

$\implies \frac{15}{100} \times \: a = \frac{20}{100} \times \: b$

$\boxed {Since , \% = \frac{1}{100}}$

$\implies \frac{a}{b}\\= \frac{20}{100}\times \frac{100}{15}\\=\frac{20}{15}\\=\frac{5\times 4}{5\times 3}$

$= \frac{4}{3}$

Therefore,.

$a:b = 4:3$

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Answer 2

Given:

⇒  15% of a = 20% of b

To find:

a : b = ?

Solution:

According to the given question:

⇒  $15 \ percent\times a = 20 \ percent\times b$

then,

⇒  $\frac{15}{100}\times a=\frac{20}{100}\times b$

(∵ % = $\frac{1}{100}$)

Now,

= $\frac{a}{b}$

On substituting the values or applying cross-multiplication, we get

= $\frac{20}{100}\times \frac{100}{15}$

= $\frac{20}{15}$

= $\frac{4}{3}$

Thus the correct answer is "$a:b=4:3$".