Question

$\text{If}\frac{25}{75}=\frac{125}{375}\text{then using the cross-multiplication method, we get:}$

• A. $25\times 375=75\times 125$
• B. $25\times 125=75\times 375$
• C. $25\times 75=125\times 375$
• D. All of these

Answer 1

The correct option is A $25\times 375=75\times 125$

Given ,
$\frac{25}{75}=\frac{125}{375}$

In a cross multiplication method, we multiply the numerator of the first fraction and the denominator of the second fraction on L.H.S and we multiply the numerator of the second fraction and the denominator of the first fraction on the R.H.S as shown below.


$25\times 375=75\times 125$
$\Rightarrow 9375=9375$