A girl spends 80 of her income If her income increases by 18 and her expenditure increases by 25 the...........

Quantitative Aptitude (MTS) Percentage

A girl spends 80% of her income. If her income increases by 18% and her expenditure increases by 25%, then what is the

percentage increase or decrease in her savings (correct to one decimal place)?

This questions was previously asked in

SSC MTS 22nd October 2021 Shift-3

5%, decrease

10%, decrease

10%, increase

5%, increase

- The girl spends 80% of her income, meaning she saves 20% of it.

- If her income increases by 18%, her new income is 118% of her original income.

- Her expenditure increases by 25%, so her new expenditure is 125% of her original 80% expenditure.

- Calculate new savings:

- Original income = 100 units, original expenditure = 80 units, so original savings = 20 units.

- New income = 118 units, new expenditure = 80 * 1.25 = 100 units.

- New savings = 118 - 100 = 18 units.

- Percentage change in savings:

- Change = 18 - 20 = -2 units.

- Percentage change = (-2/20) * 100 = -10%.

- Correct answer: 10% decrease

Option 2: 10% decrease is correct.

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