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- Question
A district has 64000 inhabitants. If the population increases at the rate of 2 * 1/2 % per annum, then the number of inhabitants at the end of 3 years will be :
Options- A. 65380
- B. 68921
- C. 70987
- D. 72345
- Correct Answer
- 68921
ExplanationPopulation afer 3 years = 64000 * (1 + 5/(2 *100) )^3 = (64000 * 41/40 * 41/40 * 41/40 ) = 68921..
- 1. The population of a town was 1,60,000 three years ago, If it increased by 3%, 2.5% and 5% respectively in the last three years, then the present population in
Options- A. 155679
- B. 167890
- C. 179890
- D. 177366 Discuss
- 2. Entry fee in an exhibition was Rs. 1. Later, this was reduced by 25% which increased the sale by 20%. The percentage increase in the number of visitors is :
Options- A. 20 %
- B. 40 %
- C. 60 %
- D. 80 % Discuss
- 3. If x is 80% of y, then what percent of 2x is y?
Options- A. 65.5 %
- B. 64.5 %
- C. 63.5 %
- D. 62.5 % Discuss
- 4. A housewife saved Rs. 2.50 in buying an item on sale. If she spent Rs. 25 for the item, approximately how much percent she saved in the transaction ?
Options- A. 8
- B. 9
- C. 10
- D. 11 Discuss
- 5. 1100 boys and 700 girls are examined in a test; 42% of the boys and 30% of the girls pass. The percentage of the total who failed is :
Options- A. 58
- B. 62 *2/3
- C. 64
- D. 67 Discuss
- 6. If 15% of x = 20% of y, then x:y is ___?
Options- A. 4:3
- B. 5:4
- C. 4:5
- D. 3:4 Discuss
- 7. Of the 1000 inhabitants of a town, 60 % are males of whom 120 % are literate. If, of all the inhabitants, 25% are literate, then what percent of the females of the town are literate ?
Options- A. 32.5 %
- B. 43 %
- C. 46.6 %
- D. 53.2 % Discuss
- 8. In some quantity of ghee, 60% is pure ghee and 40% is vanaspati. If 10 kg of pure ghee is added, then the strength of vanaspati ghee becomes 20%. The original quantity was :
Options- A. 10 kg
- B. 15 kg
- C. 20 kg
- D. 25 kg Discuss
- 9. In a competitive examination in State A, 6% candidates got selected from the total appeared candidates. State B had an equal number of candidates appeared and 7% candidates got selected with 80 more candidates got selected than A. What was the number of candidates appeared from each State ?
Options- A. 4000
- B. 8000
- C. 12000
- D. 16000 Discuss
- 10. The diference of two numbers is 20% of the larger number, if the smaller number is 20, then the larger number is :
Options- A. 15
- B. 25
- C. 35
- D. 45 Discuss
Percentage problems
Search Results
Correct Answer: 177366
Explanation:
Present population = 160000 * (1 + 3/100)(1 + 5/200)(1 + 5/100)= 177366.
Correct Answer: 60 %
Explanation:
Let the total original sale be Rs. 100. Then, original number of visitors = 100.
New number of visitors = 120/0.75 = 160.
Increase % = 60 %.
Correct Answer: 62.5 %
Explanation:
x = 80 % of y
=> x =(80/100 )y
=> y/x = 5/4
Required percentage = [(y/2x)*100] % = (5/8*100) % =62.5%
Correct Answer: 9
Explanation:
Actual price = Rs. (25 + 2.50) = Rs. 27.50.
Saving = 2.50
Percentage Saving = [(2.50/27.50)*100]
= 2500/275
= %
%
Correct Answer: 62 *2/3
Explanation:
Total number of students = 1100 + 700 = 1800.
Number of students passed = (42% of 1100 + 30% of 700) - (462 + 210) = 672.
Number of failues = 1800-672 = 1128.
Percentage failure = (1128/1800 * 100 )% = 62 * 2/3 %.
Correct Answer: 4:3
Explanation:
Given 15% of x = 20% of y
=> 15x = 20y
=> x/y = 20/15
=> x : y = 4 : 3
Correct Answer: 32.5 %
Explanation:
Number of males = 60% of 1000 = 600. Number of females = (1000 - 600) = 400.
Number of literates = 25% of 1000 = 250.
Number of literate males = 20% of 600 = 120.
Number of literate females = (250 - 120) = 130.
Required pecentage = (130/400 * 100 ) % = 32.5 %.
Correct Answer: 10 kg
Explanation:
Let the original quantity be x kg. Vanaspati ghee in x kg = (40x / 100 )kg = (2x / 5) kg.
Now, (2x/5)/(x + 10) = 20/100
=> 2x / (5x + 50) = 1/5
=> 5x = 50
=> x = 10.
Correct Answer: 8000
Explanation:
Let the number of candidates appeared from each state be x.
In state A, 6% candidates got selected from the total appeared candidates
In state B, 7% candidates got selected from the total appeared candidates
But in State B, 80 more candidates got selected than State A
From these, it is clear that 1% of the total appeared candidates in State B = 80
=> total appeared candidates in State B = 80 x 100 = 8000
=> total appeared candidates in State A = total appeared candidates in State B = 8000
Correct Answer: 25
Explanation:
Let the large number be x.
Then x - 20 = 20x/100
=> x - x/5 = 20 => x = 25.
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