Pie Charts problems
- 1. What is the ratio of number of students enrolled in Singing and Dancing Classes together to those enrolled in Drama Classes respectively?
Options- A. 3 : 1
- B. 3 : 5
- C. 4 : 7
- D. 7 : 5 Discuss
Correct Answer: 3 : 1
Explanation:
Required ratio = ( % of students enrolled in Singing + % of students enrolled in Dancing classes)/% of students enrolled in Drama Classes
Required ratio = (18 + 21) : 13 = 39 : 13 = 3 : 1
- 2. What is the total number of students enrolled in Stitching and Drama Classes together?
Options- A. 648
- B. 684
- C. 846
- D. 864 Discuss
Correct Answer: 864
Explanation:
The total number of students in Stitching and Drama Classes= ( % of students enrolled in Stitching + % of students enrolled in Drama classes) x 100/ Total number of students in all classes
Required number of students = (11 + 13) x 3600 / 100 = 24 x 36 = 864
- 3. Number of students enrolled in Painting Classes are approximately what percent of those enrolled in Singing Classes?
Options- A. 72
- B. 78
- C. 83
- D. 92 Discuss
Correct Answer: 83
Explanation:
Required percentage = % of students enrolled in Painting classes x 100/% of students enrolled in Singing classes
Required percentage = 15/18 x 100 = 83.33 = 83%
- 4. What is the number of male candidates qualified from state 'G'?
Options- A. 4536
- B. 4568
- C. 5454
- D. 5544 Discuss
Correct Answer: 4536
Explanation:
Number of candidates appeared from State G = Total number of candidates x % of appeared students from state G.
Number of candidates appeared from State G = 3,00,000 x 7/100
Number of candidates qualified from State G = Number of candidates appeared from State G x % qualified from state G
Number of candidates qualified from State G = 3,00,000 x 7/100 x 48/100
Number of candidates qualified from State G = 30 x 7 x 48 = 10080
Number of male candidates qualified from State G = Number of candidates qualified from State G x Ratio of male qualified / total Ratio
Number of male candidates qualified from State G = 10080 x 9 /(9 + 11) = 10080 x 9/20 = 4536
- 5. Which of the following pair of states have equal number of qualified male candidates?
Options- A. A and E
- B. B and F
- C. C and E
- D. C and G Discuss
Correct Answer: C and G
Explanation:
Qualified Male Candidates from different states
A ? 4/9 x 49/100 x 15/100 x 300000 = 9800
B ? 6/10 x 61/100 x 18/100 x 300000 = 19764
C ? 3/5 x 45/100 x 23/100 x 300000 = 18630
E ? x 7/13 x 65/100 x 12/100 x 300000 = 12600
F ? 11/19 x 57/100 x 19/100 x 300000 = 18810
G ? 9/20 x 48/100 x 7/100 x 300000 = 4536
Hence, State C and G have equal number of qualified male candidates
- 6. What is the percentage of candidates qualified from states 'A' and 'C' together of the total candidates appeared?
Options- A. 16.23
- B. 18.33
- C. 22.23
- D. 25.33 Discuss
Correct Answer: 18.33
Explanation:
Number of Candidates qualified from States A and C together
= 49/100 x 15/100 x 300000 + 61/100 x 18/100 x 300000
= 22050 + 32940 = 54990
Required percentage = 54990/300000 x 100 = 18.33%
- 7. What is the total number of female candidates qualified from states 'A' and 'B' together?
Options- A. 24526
- B. 25426
- C. 26426
- D. 26526 Discuss
Correct Answer: 25426
Explanation:
Required number of female candidates = 5/9 x 49/100 x 15/100 x 300000 + 4/10 x 61/100 x 18/100 x 300000
= 12250 + 13176 = 25426
- 8. What is the total number of candidates qualified from states 'E' and 'D' together?
Options- A. 45540
- B. 54410
- C. 54450
- D. 54540 Discuss
Correct Answer: 54450
Explanation:
Required number of candidates = 65/100 x 12/100 x 300000 + 45/100 x 23/100 x 300000
= 23400 + 31050 = 54450
- 9. 20% of the people from village D have banana as their favourite fruit and 12% of the people from the same village have guava as their favourite fruit. How many people from the village like other fruits?
Options- A. 764
- B. 896
- C. 968
- D. 986 Discuss
Correct Answer: 986
Explanation:
Percentage of people from village D having their favourite fruit as Banana and Guava together = 20 + 12 = 32%
Since, percentage of people from villege D having their other favourite fruit = 100 - 32 = 68%
Hence, required number of people = 20/100 x 5800 - 1/2 x 21/100 x 5800 = 986
- 10. What is the total number of people having their favorite fruit as apples and grapes together?
Options- A. 1286
- B. 1300
- C. 1334
- D. 1420 Discuss
Correct Answer: 1334
Explanation:
Total number of people having their favourite fruit as apple and grapes together = (12 + 11)/100 x 5800 = 23 x 58 = 1334
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