In the month of April, Rahul’s average ex… | Answer

Subject

Quantitative Aptitude

Topic

Average

In the month of April, Rahul’s average expenditure for the first 10 days was Rs 800 per day. If his average expenditure for the next 10 days decreases by Rs 25 after every 10 days and he earns Rs 25,000 per month. Calculate his savings in the month of April.
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ক)

Rs 1500

খ)

Rs 2000

গ)

Rs 1850

ঘ)

Rs 1950

ঙ)

Rs 1750

Explanation

Average expenditure of days 1 to 10 = Rs 800 Total expenditure for days 1 to 10 = Rs 800 × 10 = 8000 ⇒ Total expenditure for days 11 to 20 = Rs (800 – 25) × 10 = Rs 775 × 10 = Rs 7750 ⇒ Total expenditure for days 21 to 30 = Rs (775 – 25) × 10 = Rs. 750 × 10 = Rs. 7500 ∴ Total expenditure = Rs (7500 + 7750 + 8000) = Rs. 23250 Now, we know that, ⇒ Savings = Income – Expenditure = Rs 25000 – Rs 23250 = Rs 1750

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In the month of April, Rahul’s average expenditure for the first 10 days was Rs 800 per day. If his average expenditure for the next 10 days decreases by Rs 25 after every 10 days and he earns Rs 25,000 per month. Calculate his savings in the month of April.Reading

In the month of April, Rahul’s average expenditure for the first 10 days was Rs 800 per day. If his average expenditure for the next 10 days decreases by Rs 25 after every 10 days and he earns Rs 25,000 per month. Calculate his savings in the month of April.

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In the month of April, Rahul’s average expenditure for the first 10 days was Rs 800 per day. If his average expenditure for the next 10 days decreases by Rs 25 after every 10 days and he earns Rs 25,000 per month. Calculate his savings in the month of April.
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