The ratio of the present ages of P and Q is 3 : 4. Five years ago, the ratio of their ages was 5 : 7. Find their present ages

Answer

A

Explanation

Total boys taken admission in school P
`=12000xx(56)/(100)=6720`
Total boys taken admission in school Q
`=10500xx(64)/(100)=6720`
Total boys taken admission in school R
`=9000xx(52)/(100)=4680`
Total boys taken admission in school S
`=18000xx(68)/(100)=12240`
Total boys taken admission in school T `=16000xx(60)/(100)=9600`
Required ratio
`=(6720+6720+4680+12240+9600)/(5)=(39960)/(5)=7992`