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- Question
The current birth rate per thousand is 32, whereas corresponding death rate is 11 per thousand. The net growth rate in terms of population increase in percent is given by :
Options- A. 1.2 %
- B. 2.1 %
- C. 3.1 %
- D. 1.3 %
- Correct Answer
- 2.1 %
ExplanationNet growth on 1000 = (32 - 11) = 21. Net growth on 100 =(21/1000 * 100) %= 2.1%.
- 1. 5/9 of the part of the population in a village are females. If 30 % of the females are married. The percentage of unmarried males in the total males is ?
Options- A. 62.5 %
- B. 125 %
- C. 84.32 %
- D. 46.87 % Discuss
- 2. In an examination a candidate got 30% marks and failed by 30 marks. If the passing marks are 60% of the total marks, then the maximum marks will be:
Options- A. 450
- B. 600
- C. 300
- D. 100 Discuss
- 3. 5% of 400000?
Options- A. 4000
- B. 16000
- C. 8000
- D. 20000 Discuss
- 4. 15% of 32 is
Options- A. 3.6
- B. 4.8
- C. 5.2
- D. 5.8 Discuss
- 5. Lucky started working 2 years ago. Her starting salary was half of Karthik's salary at that time. Each year since then Lucky and Karthik have received a rise of 10% in their respective salary. What percentage (to the nearest percent) of Karthik's current salary is Lucky's current salary ?
Options- A. 75%
- B. 22.5%
- C. 35%
- D. 50% Discuss
- 6. A man lost half of its initial amount in the gambling after playing 3 rounds. The rule of gambling is that if he wins he will receive Rs. 100, but he has to give 50% of the total amount after each round.Luckily he won all the three rounds. The initial amount with which he had started the gambling was :
Options- A. 500/3
- B. 700/3
- C. 300
- D. 600 Discuss
- 7. In a college, number of boys is 75% of number of girls. Difference between boys and girls is 35. On a particular day 20% boys were absent, then find the number of boys those who present?
Options- A. 72
- B. 84
- C. 93
- D. 81 Discuss
- 8. A seller charges 28% more from a customer as GST on an article. If customer paid Rs. 4544, what is the cost price of the article?
Options- A. Rs. 3550
- B. Rs. 2650
- C. Rs. 3840
- D. Rs. 2450 Discuss
- 9. A candidate got 35% of the votes polled and he lost to his rival by 2250 votes. How many votes were cast ?
Options- A. 7500
- B. 6200
- C. 5600
- D. 4700 Discuss
- 10. A restaurant offers a new promotion of 20% off the original price of cakes, which is Rs. 12. Before the promotion 250 cakes were sold each day. After the promotion, the sale of cakes increases an average of 18% more per day. How much more or less does the restaurant make each day in cakes sales after the promotion?
Options- A. Rs. 185 less
- B. Rs. 202 more
- C. Rs. 175 more
- D. Rs. 168 less Discuss
Percentage problems
Search Results
Correct Answer: 62.5 %
Explanation:
Let total population = p
number of females = 5p/9
number of males =(p-5p/9) = 4p/9
married females = 30% of 5p/9 = 30x5p/100x9 = p/6
married males = p/6
unmarried males =(4p/9-p/6) = 5p/18
Percentage of unmarried males in the total males = {(5p/18)/4p/9}x100 = (5p/18)x(9/4p) = 125/2 % = 62.5%
Correct Answer: 100
Explanation:
Passing marks are 0.6x
so 0.3x + 30 = 0.6x => x = 100
Correct Answer: 20000
Explanation:
5% of 400000
= 5 x 400000/100
= 20,000
Hence, 5% of 4,00,000 = 20,000
Correct Answer: 4.8
Explanation:
15% of 32 is
15 x 32/100 = 4.8.
Correct Answer: 50%
Explanation:
Let the salary of Karthik 2 years ago be Rs.100
So, Lucky's salary 2 years ago was Rs.50
Karthik's present salary has seen two 10 percent increases. So as Lucky's salary.
So, Karthik's salary 1 year ago = 100 + 10% of 100 = 100 + 10 = 110.
Karthik's present salary = 110 + 10% of 110 = 110 + 11 = 121.
Lucky's salary 1 year ago = 50 + 10% of 50 = 50 + 5 = 55
Lucky's present salary = 55 + 10% of 55 = 55 + 5.5 = 60.5
Lucky's present salary of 60.5 = 50% of Karthik's present salary of 121.
Correct Answer: 700/3
Explanation:
Let the initial amount be x (with gambler), then
=> x = 700/3
Correct Answer: 84
Explanation:
Ratio of girls and boys = 100% : 75% = 4:3
Difference is 1 unit = 35
So, 3 units = 35 x 3 = 105
If 20% absent, that?s mean 80% present.
So, present boys = 80% of 105 =
Correct Answer: Rs. 3550
Explanation:
Let the cost price of the article be 'P'
Then from given data,
Hence, the cost price of the article = P = Rs. 3550
Correct Answer: 7500
Explanation:
Let the candidates be A & B
35%-----------A
65%-----------B
Difference of votes (65-35)% = 30%
=> 30% ------- 2250
Then for 100% -------- ? => 7500
Correct Answer: Rs. 168 less
Explanation:
Cost of each cake P1 & P2 = Rs. 12
Offer decrease in % = 20%
Increase in sale per day (Q2) = 250 - 18%
Total quantity per day (Q1) = 250
Hence, required change total revenue
TR = P2Q2 - P1Q1 = (12 x 0.8 x 250 x 1.18) - (12 x 250) = - Rs.168.
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