Discussion
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- Question
- If length and breadth of a rectangle became half and double respectively, then what will be the resultant area?
Options- A. 25%
- B. 55%
- C. 75%
- D. 80%
- Correct Answer
-
ExplanationAccording to the question,
Change in length of rectangle = - 50% = a
Change in breadth of rectangle = 100% = b
Net effect = a + b + (ab)/100 %
= - 50 + 100 + [(-50) (100) / 100]%
= 0% - 1. What is 32% of 3/8 th of 5000?
Options- A. 606
- B. 610
- C. 580
- D. 600 Discuss
- 2. 50 kg is what per cent of 250 kg?
Options- A. 26%
- B. 15%
- C. 20%
- D. 18% Discuss
- 3. If income of Vandana is 25% more than that of Aarti, then income of Aarti is how much per cent less than of Vandana?
Options- A. 18%
- B. 21%
- C. 20%
- D. 24% Discuss
- 4. When 35 is subtracted from a number, it reduced to its 80%. What is 4/5th of that number?
Options- A. 70
- B. 90
- C. 120
- D. 140 Discuss
- 5. The monthly income of a person is ? 5000. If his income is increased by 30% then what is his monthly income now?
Options- A. ? 7000
- B. ? 5500
- C. ? 4500
- D. ? 6500 Discuss
- 6. Two number are respectively 20% and 50% more than a 3rd number, What is the percentage of 2nd with respect to 1st?
Options- A. 125%
- B. 90%
- C. 80%
- D. 75% Discuss
- 7. In order to pass in an exam, a students is required to get 780 marks out of the aggregate marks. Sonu got 728 marks and was declared failed by 5%. What are the maximum aggregate marks a student can get in the examination?
Options- A. 1040
- B. 1100
- C. 1000
- D. Cannot be determined Discuss
- 8. Reena got 76 marks in Hindi, 48 marks in science, 84 marks in Mathematics, 38 marks in Social Science and 72 marks in English. The Maximum marks of each subjects was 100. How much over all percentage of marks she got?
Options- A. 63.8%
- B. 62.6%
- C. 63.6%
- D. 64.8% Discuss
- 9. A saves 20% of his monthly salary. If his monthly expenditure is ? 6000 then his monthly saving is?
Options- A. ? 1200
- B. ? 4800
- C. ? 1500
- D. ? 1800 Discuss
- 10. A's salary is 20% less than B' s salary. Then B's salary is more than A's salary by
Options- A. 331/2%
- B. 162/3%
- C. 20%
- D. 25% Discuss
Percentage problems
Search Results
Correct Answer: 600
Explanation:
32%of 3/8 of 5000 = (32/100) x (3/8) x 5000
= 4 x 3 x 50 = 600
Correct Answer: 20%
Explanation:
Required percentage = (50/250) x 100% = 20%
Correct Answer: 20%
Explanation:
Let Aarti's income be ? 100
? Vandana's income = ? 125
? Aarti's income is ? 25 less than 125.
? Required percentage = (25/125) x 100% = 20%
Correct Answer: 140
Explanation:
Let the number be N.
Then N - 35 = 80N/100
? N - 4N/5 = 35
? N / 5 = 35
? N = 175
? Required number = 175 x (4/5)
= 35 x 4 = 140
Correct Answer: ? 6500
Explanation:
Monthly income of a person = ? 5000
Increment in income = (30/100) x 5000 = 1500
New income = 5000 + 15000 = ? 6500
Correct Answer: 125%
Explanation:
III II I
100 150 120
Required percentage = (150/120) x 100% = 125%
Correct Answer: 1040
Explanation:
Let the maximum marks be N .
According to the question,
Then, 780 - 728 = 5% of N
? 52 = 5% of N
? N = 5200/5 = 1040
Correct Answer: 63.6%
Explanation:
Total marks obtained = (76 + 48 + 84 + 38 + 72) = 318
Maximum marks = 5 x 100 = 500
? Requirred percentage = (318/500) x 100 % = 63.6 %
Correct Answer: ? 1500
Explanation:
Saving = 20%
Expenditure = 80% = ?6000
Since 80% is 6000 so 20% would be 6000/4 = ?1500
Hence net saving per month = ?1500
Correct Answer: 25%
Explanation:
Given, a = 20%
Required percentage = [a/(100 - a)] x 100%
= [20/(100 - 20)] x 100%
= (20/80) x 100%
= 25%
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