Question

p/q=r/s=2.5/3.5,the value of ps:qr is

Answer 1

p/q = 25/35
r/s = 25/35
ps : qr = 25/35 * 25/35
           = 625/1225

Answer 2

$\frac{p}{q}$ = $\frac{r}s$ = $\frac{2.5}{3.5}$

ps = rq = 2.5/3.5

ps = rq = 25/35

ps = rq = 5/7

Here,ps and rq are equal. So write ps = rq

ps/rq = rq/rq = (5/7) ÷ (5/7)

ps : rq = 1 : 1