Percentage problems
- 1. What should come in place of question mark (?) in the following question? 45% of 400+ ?? = 56% of 750 - 40% of 350
Options- A. 10000
- B. 1000
- C. 10201
- D. 9801 Discuss
Correct Answer: 10000
Explanation:
45/100×400+??=56/100 ×750 -40/100 ×350
180 + ?? = 420 - 140 180 + ?? = 280 ?? = 280 - 180 ?? = 100 ? = 1002 ? = 10000
- 2. The price of an article is cut by 3%. To restore to its original value, the new price must be increased by
Options- A. 3 percent
- B. 7.11 percent
- C. 3.09 percent
- D. 2.69 percent Also asked in: AIEEE, Bank Exams, CAT
Correct Answer: 3.09 percent
- 3. At 15% discount the selling price of a microwave oven is Rs 34000, what is the selling price if the discount is 37.5%?
Options- A. Rs 25000
- B. Rs 15625
- C. Rs 17968.75
- D. Rs 29218.75 Also asked in: AIEEE, Bank Exams, CAT
Correct Answer: Rs 25000
- 4. A student multiplied a number by 5/6 instead of 6/5. What is the percentage error in the calculation?
Options- A. 44 percent
- B. 30.56 percent
- C. 15.28 percent
- D. 22 percent Also asked in: AIEEE, Bank Exams
Correct Answer: 30.56 percent
- 5. A student multiplied a number by 4/5 instead of 5/4. What is the percentage error in the calculation?
Options- A. 56.25 percent
- B. 18 percent
- C. 28.13 percent
- D. 36 percent Also asked in: AIEEE, Bank Exams, CAT
Correct Answer: 36 percent
- 6. Every month, Kritika spends 30% of her income on house rent and 60% of the rest on household expenditure. If she saves ? 6300 per month, what is her total monthly income?
Options- A. ? 22,000
- B. ? 20,500
- C. ? 22,500
- D. ? 25,000 Also asked in: AIEEE, Bank Exams, CAT
Correct Answer: ? 22,500
Explanation:
Let the monthly income be x
Kritika spends 30% of her income on house rent. The remaining amount will be 70% of x
Kritika spends 60% of the rest (70% of 60% = 42% of x )on household expenditure. The remaining amount will be 28% of x
If 28% of x is 6300 then 100% will be 22,500
- 7. After two successive discounts of 20% and 35%, an article is sold for Rs 50700. What is the marked price (in Rs) of the article?
Options- A. 92500
- B. 98500
- C. 97500
- D. 94000 Also asked in: AIEEE, Bank Exams, CAT
Correct Answer: 97500
- 8. 20% of a man's salary is paid as rent, 60% are his living expenses and 10% are his savings. If he spends remaining 30 on the education of his children, find his salary
Options- A. 300
- B. 900
- C. 3000
- D. 9000 Also asked in: Bank Exams
Correct Answer: 300
- 9. A man?s average monthly expenditure for the first four months of the year was Rs. 231.25. For the next five months, the average monthly expenditure was Rs. 22.75 more than what it was during the first four months. If the person spent Rs. 605 in all during the remaining three months of the year, find what percentage of his annual income of Rs. 3500 did he save in the year?
Options- A. 10%
- B. 15%
- C. 20%
- D. 25% Also asked in: Bank Exams
Correct Answer: 20%
Explanation:
A man's average monthly expenditure for the first four months of the year = Rs.231.25.
For four month = 231.25 * 4 = Rs. 925
For next five month he spend = 231.25 + 22.75 for one month.
In five month he spend = (231.25 + 22.75) X 5 = 1270
If the person spent Rs. 605 in all during the remaining three months of the year,
Total expense = 925+1270+605= 2800
Saving = 3500-2800 = 700
% saving = 700/3500 * 100 = 20%
- 10. A sum of Rs. 2600 is lent out into two parts, one at 9% and another at 7% if the total annual income is Rs. 206, find the money lent at 7%.
Options- A. Rs. 1400
- B. Rs. 900
- C. Rs. 1600
- D. Rs. 1200 Also asked in: Bank Exams
Correct Answer: Rs. 1400
Explanation:
Money lent at 9% = x
Money lent at 7% = (2600 ? x)
? 9x/100 + (2600 ? x) X 7 /100 = 206
? 9x + 18200 ? 7x = 20600
? 2x = 2400
? x = 1200
Money lent at 7% = 2600-1200 = 1400
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