Discussion
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- Question
- The Cars of which colours together make them 50%?
Options- A. Blue, Black, Red
- B. White, Black, Red
- C. White, Blue, Green
- D. White, Sliver, blue
- Correct Answer
- White, Black, Red
ExplanationThe percentage of White, Black and Red Cars = 25 + 20 + 5 = 50%
- 1. Which car is 40% more popular than black cars?
Options- A. Blue
- B. Brown
- C. Red
- D. Sliver Discuss
- 2. If the total production of cars during a certain period was 42000, how many more blue cars were sold in comparison to golden cars.
Options- A. 8400
- B. 12580
- C. 12850
- D. 13618 Discuss
- 3. In which faculty there was decrease in the number of students from 2008 to 2009?
Options- A. Arts
- B. Agriculture
- C. Pharmacy
- D. None of these Discuss
- 4. What is the ratio between the number of student studying Pharmacy in the years 2008 and 2009 respectively?
Options- A. 4 : 3
- B. 5 : 7
- C. 7 : 12
- D. 8 : 13 Discuss
- 5. In the year 2008, the number of students studying Arts and Commerce together is what per cent of the number of studying these subject together in 2009?
Options- A. 76
- B. 79
- C. 82
- D. 85 Discuss
- 6. 3% increase in the production of Cars of which colour along with red cars will make them 35% of the total cars?
Options- A. Black
- B. Blue
- C. Silver
- D. Yellow Discuss
- 7. The number of students enrolled in Cooking classes is what percent of those enrolled in Dancing classes?
Options- A. 101.45
- B. 104.76
- C. 110.28
- D. 113.84 Discuss
- 8. How many students are enrolled in painting Classes?
Options- A. 450
- B. 520
- C. 540
- D. 550 Discuss
- 9. 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
- 10. What is the total number of students enrolled in Stitching and Drama Classes together?
Options- A. 648
- B. 684
- C. 846
- D. 864 Discuss
Pie Charts problems
Search Results
Correct Answer: Sliver
Explanation:
Let us assume the car which is 40% more popular than black is a and total number of car is P.
According to question,
(P x a/100 ) - (P x 5/100) = P x 5/100 x 40/100
P(a - 5)x1/100 = P x 5/100 x 40/100
(a - 5) = 5 x 40/100
(a - 5) = 200/100 = 2
a - 5 = 2
a = 2 + 5 = 7
40% more popular than Black cars = 7% popular Silver cars.
Correct Answer: 8400
Explanation:
Required difference = ( blue car % - golden car % )x420000/100
Required difference = (12 -10)/100 x 420000 = 2/100 x 420000 = 8400
Correct Answer: Agriculture
Explanation:
In 2008, number of students in Arts = Total Student x 12%
In 2008, number of students in Arts = 35000x12 /100 = 4200
In 2009, number of students in Arts = Total Student x 11%
In 2009, number of students in Arts = 40000x11/100 = 4400
In 2008, number of students in Agriculture = Total Student x 7%
In 2008, number of students in Agriculture = 35000 x 7/100 = 2450
In 2009, number of students in Agriculture = Total Student x 5%
In 2009, number of students in Agriculture = 40000x5/100 = 2000
In 2008, number of students in Pharmacy = Total Student x 6%
In 2008, number of students in Pharmacy = 35000 x 6/100 = 2100
In 2009, number of students in Pharmacy = Total Student x 9%
In 2009, number of students in pharmacy = 9/100 x 40000 = 3600
Hence, in Agriculture there was decrease in the number of students from 2008 to 2009.
Correct Answer: 7 : 12
Explanation:
In 2008, the number of students studying Pharmacy = 35000 x 6/100 = 2100
In 2009, the number of students studying Pharmacy = 9 x 40000 /100 x = 3600
Hence, their ratio = 2100 : 3600 = 7 : 12
Correct Answer: 85
Explanation:
In 2008, the number of students studying Arts and commerce together
= (12 + 22)/100 x 35000 = 34 x 350 = 11900
In 2009, the number of students studying Arts and Commerce together
= (11 + 24)/100 x 40000 = 35 x 400 = 14000
Hence, required percentage = 11900/14000 x 100 = 85%
Correct Answer: Blue
Explanation:
If 3% increase in the production of Blue cars, then percentage of Blue cars = 12 + 3
Hence, percentage of (Blue + Red) cars = 15 + 20 = 35
Correct Answer: 104.76
Explanation:
Required percentage = number of students enrolled in Cooking classes x 100/ number of students enrolled in Dance classes
Required percentage = 22 x 100/21 = 104.76
Correct Answer: 540
Explanation:
Number of students enrolled in Painting classes = % of students enrolled in Painting classes x 100/ Number of total students
Number of students enrolled in Painting classes = 3600 x 15/10 = 540
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
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
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