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The ratio of the income to the expenditure of a family is 10 : 7. If the family expenses are Rs. 11,200, then the savings of the family is1). Rs. 4,5002). Rs. 10,0003). Rs. 4,8004). Rs. 5,000 |
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Answer» ⇒ LET the income and expenditures be Rs. 10X and Rs. 7X respectively ⇒ Given Expense is Rs. 11,200 ⇒ 7x = 11,200 ⇒ x = 11,200/7 = 1600 ⇒ SAVING = income - expenditure ⇒ Saving = 10x - 7x ⇒ Saving = 3x ⇒ PUTTING the value of x in above we get ⇒ Saving = 3 × 1600 ∴ Saving = Rs. 4,800 |
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