Answer :
Given : Sana and Sara together have RS 700 . Sara has three times as much as Sana .
Let , Sana have total money = x , So
Sara have total money = 3 x
Then
x + 3 x = 700
4 x = 700
x = 175
Therefore ,
Sana have total money = Rs . 175
And
Sara have total money = 3 ( 175 ) = Rs . 525 ( Ans )