Since the money has been divided into three parts in the ratio 4:7:10,
Let the three parts be Rs 4x,Rs 7x and Rs 10x respectively.
Then the total amount=Rs(4x+7x+10x)=Rs 21x
According to given,7x=350x=50
Total amount=Rs (2150)=Rs 1050
1st part=Rs (450)=Rs 200 and
3rd part=Rs (1050)=Rs 500