SBI PO Prelims 8 Mar 2025 Shift 3 Paper

Concept:Savings is income minus expenditure. Given savings amount and expenditure percentage, we find original incomes. Then compute new incomes after percentage increase and new savings, then find the difference.Explanation:A spends 25% of income, so saves 75%. Thus $0.75x = 9000$. Therefore $x = 12000$.B spends $33.333\% = \frac{1}{3}$, so saves $\frac{2}{3}$. Thus $\frac{2}{3}y = 10000$. Therefore $y = 15000$.New income of A: increase by 50% means $12000 \times 1.5 = 18000$. Expenditure percentage remains 25%, so savings percentage is 75%. New savings of A = $0.75 \times 18000 = 13500$.New income of B: increase by 40% means $15000 \times 1.4 = 21000$. Savings percentage remains $\frac{2}{3}$. New savings of B = $\frac{2}{3} \times 21000 = 14000$.Difference in new savings = $14000 - 13500 = 500$.Answer:$500$ (Option D)