Question

12 and half p.c of what amount is Rs. 320 ?​

Answer 1

let the number be x.

$12 \frac{1}{2} \% \: of \: x \: = 320$

$\frac{ \frac{25}{2} }{100} \times x = 320$

$x = \frac{320 \times 200}{25}$

$x = 320 \times 8$

$x = 2560$