Answer :

Let the two parts be x and y such that

x+y=830…..(i)


So y=830-x


So the two parts will be x and (830-x)


Now according to the given criteria,


30% of x=40% of (830-x) +4





3x=4(830-x)+40


3x=3320-4x+40


3x+4x=3360


7x=3360



So the other part is 830-x=830-480=350


Hence the two parts are 480 and 350.


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