Question

If $p,q,r,s$are in proportion, then we have

• A. $p:q::r:s$
• B. $p:s::q:r$
• C. $Both\left(a\right)and\left(b\right)$
• D. $q:r::p:s$

Answer 1

The correct option is A

$p:q::r:s$

Two ratios are in proportion then product of their extreme terms is equal to the product of their middle terms

Here, $p,q,r,s$ are in proportion then

$\Rightarrow p:q::r:s$

$p\times s=q\times r$

Hence, option (A) is correct.