Let the total amount with Kishor be Rs.x
Amount he gave to his son =35%×x=Rs.35x100
Amount left with him =x−.35x100=100x−35x100=Rs.65x100
Amount he gave to his daughter 45%×65x100=45100×65x100
=Rs.2925x10000 or 0.2925x
Amount left with him which he gave to his wife =65x100−2925x10000
=6500x−2925x10000
=Rs.3575x10000
According to the question,
⇒3575x10000=64,350
∴x=64,350100003575=18×10000=Rs.1,80,000
Thus, amount of money his son get =35×180000100=Rs.63000