Let monthly income of ‘P’ and ‘Q’ be Rs. ‘15x’ and Rs. ‘22x’, respectively Monthly savings of ‘Q’ = 56% × 15x = Rs. 8.4x Monthly savings of ‘P’ = {8.4/1.2} = Rs. 7x Monthly expenditure of ‘P’ = 15x – 7x = Rs. 8x Monthly expenditure of ‘Q’ = 22x – 8.4x = Rs. 13.6x Or, 13.6x = 4760 Or, x = 4760/13.6 Or, x = 350 Monthly expenditure of ‘P’ = 8 × 350 = Rs. 2800
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