Liza spent ½ of her money for a new dress and gave 2/3 of the remainder to her mother. If she gave P50 each to her nephews and had P500 left, how much was her money at first?
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N = (1/2)N + (2/3)(1/2)N + 50 + 500
N = (1/2)N + (1/3)N + 550
N = (2/3)N + 550
(1/3)N = 550
N = 1650
1/2*1650 = 825
825 remains
2/3 of that is 275
dress 825
mom 275
nephew 50
remains 500
TOTAL 1650
it is total of 1620 the money she have