Q1 If p: q :: r: s, then the correct statement is
a qr = ps b pqr =s c qrs =p d pq=rs
p:q::r:s are in proportion means that product of extreme = product of mean
⇒ ps = qr
Hence (a) is the correct option .
Q1 If p: q :: r: s, then the correct statement is
a qr = ps b pqr =s c qrs =p d pq=rs
p:q::r:s are in proportion means that product of extreme = product of mean
⇒ ps = qr
Hence (a) is the correct option .