Question 694260
if the ratio of p to q is 2 to 3 and ratio of q to r is 1 to 2 then ratio of p to r is ? solve

p:q = 2:3 so {{{ p/q=2/3 }}}
q:r = 1:2 so {{{ q/r=1/2 }}}

Then {{{ p/r = (p/q)(q/r) = (2/3)(1/2) = 1/3 }}}
Hence p:r = 1:3