Out of the total income, X spends 20% on house rent and 70% of the remaining amount on household expenditure. If X saves ₹1800, the total income is - Mathematics

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MCQ

Out of the total income, X spends 20% on house rent and 70% of the remaining amount on household expenditure. If X saves ₹1800, the total income is

Options

  • ₹ 8000

  • ₹ 9500

  • ₹ 7500

  • ₹ 8500

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Solution

₹ 7500

Explanation:

Let total income be = x

after spending 20% of x he has = `80/100 "x"`

after spending 70% of remaining he has

`=30/100xx80/100"x"`

`30/100xx80/100"x"=1800`

`"x"=(1800xx100)/24=300xx25=7500`

Concept: Percentage, Discount and Partnership (Entrance Exam)
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