ATQ, Let the salary of P be 'a' Amount given to his son = a×35/100 = 7a/20 Remaining amount = a - 7a/20 = 13a/20 Amount kept in bank = (13a/20)×40/100= 13a/50 So, 13a/50 + 7a/20 = 87840 or, 26a+35a/100 = 87840 or, 61a = 87840×100 or, a = 8784000/61 a = Rs.144000
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