Question : Bhushan's monthly income is 45,000 and his monthly expenditure is 33,000. if his monthly income is increased by 22% while monthly expenditure is increased by 11%, then what is his new monthly savings (in INR)?
Option 1: 18,270
Option 2: 18,690
Option 3: 18,000
Option 4: 19,000
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Correct Answer: 18,270
Solution :
Bhushan's monthly income = INR 45,000
Bhushan's monthly expenditure = INR 33,000
Monthly income after 22% increase = 45,000 × $\frac{122}{100}$ = INR 54,900
Monthly expenditure after 11% increase = 33,000 × $\frac{111}{100}$ = INR 36,630
New monthly savings = INR (54,900 – 36,630) = INR 18,270.
Hence, the correct answer is 18,270.
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