Monthly savings of ‘Q’ is 25% more than that of ‘P’ and is 56% less than monthly income of ‘P’. Monthly expenditure of ‘Q’ is Rs. 4100 and ratio of monthly income of ‘P’ and ‘Q’ is 15:23, respectively. Find monthly expenditure of ‘P’.
Let monthly income of ‘P’ and ‘Q’ be Rs. ‘15x’ and Rs. ‘23x’, respectively Monthly savings of ‘Q’ = 44% × 15x = Rs. 6.6x Monthly savings of ‘P’ = {6.6/1.25} = Rs. 5.28x Monthly expenditure of ‘P’ = 15x – 5.28x = Rs. 9.72x Monthly expenditure of ‘Q’ = 23x – 6.6x = Rs. 16.4x Or, 16.4x = 4100 Or, x = 4100/16.4 Or, x = 400 Monthly expenditure of ‘P’ = 9.72 × 250 = Rs. 2430
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