Question
Rahul spends 80% of his salary and earns an allowance of
5% of his salary each month. His annual saving is Rs. 94500. Find his monthly allowance. [Monthly income = salary + allowance]Solution
ATQ,
Let salary = ₹x Spends = 80% of x → Saving from salary = 20% of x = 0.20x Allowance = 5% of x = 0.05x Monthly saving = 0.20x + 0.05x = 0.25x Annual saving = ₹94,500 →12×0.25x = 94500 ⇒3x = 94500 ⇒ x = 31500 Monthly allowance = 5% of 31500 = ₹1575
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