Question

4. If 15% of A = 20% of B. then A:B = ?​

Answer 1

Given 15% of a=20%of b

$15\% \times \: a = 20\% \times \: b15%×a=20%×b$

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

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

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

$\frac{4}{3}$

Therefore,.

a:b = 4:3

Answer 2

Step-by-step explanation:

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \huge \sf\blue{\colorbox{blu}{Answer}}$

$\large\ 15\% \: \times a = 20\% \times b15$

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

$\large\ since \: \% \: = \frac{1}{100}$

$\large\ \frac{a}{b}$

$\large\ \frac{200}{100} \times \frac{100}{5}$

$\large\ = \frac{20}{15}$

$\large\ = \frac{5 \times 4}{5 \times 3}$

$\large\ \frac{4}{3}$

Ans = a:b =4:3