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Income, expenditure and savings in a ratio with percent changes

This type of question, asked 5 times: 14 Jul 2023 S4, 27 Jul 2023 S2, 12 Sep 2024 S3, 25 Sep 2024 S2, 26 Sep 2024 S2. All 5 questions below, oldest first.

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  1. Question 1

    14 Jul 2023 S4

    54
    The ratio between the monthly income and the expenditure of Vaidic is 8:58 : 5. If his income increases by 20%20\% and his expenditure increases by 30%30\%, then find the percentage increase or decrease in his monthly savings.

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  2. Question 2

    27 Jul 2023 S2

    64
    Soham’s initial expenditure and savings were in the ratio of 5:35 : 3. His income increases by 25%25\%. If his initial savings were ₹4,500, find his income (in ₹) after the increment.

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  3. Question 3

    12 Sep 2024 S3

    72
    The proportion of Suresh's spending to saving is 3:13 : 1. His salary rises by 25%25\%. What percentage of his expenditure will increase if his saving grows by 10%10\%?

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  4. Question 4

    25 Sep 2024 S2

    69
    The ratio of expenditure to savings of a woman is 4 : 1. If her income and expenditure are increased by 20% and 10%, respectively, then find the percentage change in her savings.

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  5. Question 5

    26 Sep 2024 S2

    73
    Suresh's expenditure and savings are in the ratio of 3 : 1. His income increases by 25%25\%. If his savings increase by 20%20\%, then by how much percentage does his expenditure increase?

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