Problems on Ages - ( Arithmetic Aptitude)

Important Formulas on "Problems on Ages" :1. If the current age isx, thenntimes the age isnx.2. If the current age isx, then agenyears later/hence =x+n.3. If the current age isx, then agenyears ago =x-n.4. The ages in a ratioa:bwill beaxandbx.
5. If the current age isx, then 1 of the age is x .
n n