If a man’s income doubles and expenditure triples, savings will ____. A. Increase B. Decrease C. Remain the same D. Cannot determine Explanation: Expenditure rises faster than income.
If a number increases by 50% and then decreases by 50%, net change is ____. A. 25% decrease B. 25% increase C. No change D. 50% decrease Explanation: 1.5 × 0.5 = 0.75 → 25% decrease.
If consumption decreases by 20% and price increases by 25%, expenditure becomes ____. A. Same B. Increased C. Decreased D. Doubled Explanation: 0.8 × 1.25 = 1.
A person’s salary increases by 25%, and expenditure increases by 20%. What is the change in savings? A. Increase B. Decrease C. No change D. Cannot determine Explanation: Income grows faster than expenditure.
If a price is increased by 10% and then decreased by 10%, what is the net effect? A. No change B. 1% increase C. 1% decrease D. 2% decrease Explanation: Net effect = −1%.
A number is decreased by 10% and then by another 10%. Total decrease is ____. A. 20% B. 19% C. 18% D. 21% Explanation: 0.9 × 0.9 = 0.81 → 19% decrease.
If expenditure increases by 20% and income by 10%, what is the effect on savings? A. Increase B. Decrease C. No change D. Cannot determine Explanation: Expenditure rises faster, reducing savings.
A man spends 75% of his income. If income increases by 20%, what is the increase in savings? A. 60% B. 80% C. 100% D. 120% Explanation: Savings increase from 25% to 40% → 60% increase.
If a number is decreased by 20% and then increased by 25%, what is the result? A. No change B. 5% increase C. 5% decrease D. 10% increase Explanation: 0.8 × 1.25 = 1.
A number is increased by 25% and then by 20%. What is the net increase? A. 45% B. 50% C. 55% D. 60% Explanation: 1.25 × 1.2 = 1.5 → 50%.