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Question 1 of 10
1. Question
1 pointsCategory: Quantitative AptitudeDirections (Q15). There are total 6400 voters in three villages A, B and C. Ratio of total voters in A, B and C is 6:7:3 respectively. Ratio of male voters in A to male voters in B is 4:3. Number of male voters in B are 50% more than the male voters in C. Ratio of female voters in A to female voters in B is 1:2.
Total number of male voters in B are how much percent more than the total number of female voters in C?
Correct
Answer 2) 200%
Explanation Total number of voters in A = 6400/16 × 6 = 2400
Total number of voters in B = 6400/16 × 7 = 2800
Total number of voters in C = 6400/16 × 3 = 1200
Let the number of male voters in A is 4x and the number of male voters in B is 3x.
Then the number of male voters in C = 3x/150 × 100 = 2x
Let the number of female voters in A is y and the number of female voters in B is 2y.
According to question,
4x + y = 2400…….. (1)
Also, 3x + 2y = 2800……… (2)
By solving both equations, we have, x = 400, y = 800
Number of male voters in A = 4 × 400 = 1600
Number of male voters in B = 3 × 400 = 1200
Number of male voters in C = 2 × 400 = 800
Number of female voters in A = 800
Number of female voters in B = 2 × 800 = 1600
Number of female voters in C = 1200 – 800 = 400
Required ratio = (1200 – 400)/400 = 200%Incorrect
Answer 2) 200%
Explanation Total number of voters in A = 6400/16 × 6 = 2400
Total number of voters in B = 6400/16 × 7 = 2800
Total number of voters in C = 6400/16 × 3 = 1200
Let the number of male voters in A is 4x and the number of male voters in B is 3x.
Then the number of male voters in C = 3x/150 × 100 = 2x
Let the number of female voters in A is y and the number of female voters in B is 2y.
According to question,
4x + y = 2400…….. (1)
Also, 3x + 2y = 2800……… (2)
By solving both equations, we have, x = 400, y = 800
Number of male voters in A = 4 × 400 = 1600
Number of male voters in B = 3 × 400 = 1200
Number of male voters in C = 2 × 400 = 800
Number of female voters in A = 800
Number of female voters in B = 2 × 800 = 1600
Number of female voters in C = 1200 – 800 = 400
Required ratio = (1200 – 400)/400 = 200% 
Question 2 of 10
2. Question
1 pointsCategory: Quantitative AptitudeDirections (Q15). There are total 6400 voters in three villages A, B and C. Ratio of total voters in A, B and C is 6:7:3 respectively. Ratio of male voters in A to male voters in B is 4:3. Number of male voters in B are 50% more than the male voters in C. Ratio of female voters in A to female voters in B is 1:2.
What is the ratio of total number of male voters in B and C together to the total number of female voters in A and B together?
Correct
Answer 2) 5:6
Explanation Required ratio = (1200 + 800)/(800 + 1600) = 2000/2400 = 5:6Incorrect
Answer 2) 5:6
Explanation Required ratio = (1200 + 800)/(800 + 1600) = 2000/2400 = 5:6 
Question 3 of 10
3. Question
1 pointsCategory: Quantitative AptitudeDirections (Q15). There are total 6400 voters in three villages A, B and C. Ratio of total voters in A, B and C is 6:7:3 respectively. Ratio of male voters in A to male voters in B is 4:3. Number of male voters in B are 50% more than the male voters in C. Ratio of female voters in A to female voters in B is 1:2.
What is the difference between the total number of male voters and total number of female voters in all the villages together?
Correct
Answer 5) 800
Explanation Required difference = (1600 + 1200 + 800) – (800 + 1600 + 400) = 3600 – 2800 = 800Incorrect
Answer 5) 800
Explanation Required difference = (1600 + 1200 + 800) – (800 + 1600 + 400) = 3600 – 2800 = 800 
Question 4 of 10
4. Question
1 pointsCategory: Quantitative AptitudeDirections (Q15). There are total 6400 voters in three villages A, B and C. Ratio of total voters in A, B and C is 6:7:3 respectively. Ratio of male voters in A to male voters in B is 4:3. Number of male voters in B are 50% more than the male voters in C. Ratio of female voters in A to female voters in B is 1:2.
Total number of female voters in village A are how much percent of the total number of male voters in village C?
Correct
Answer 1) 100%
Explanation Required percentage = 800/800 × 100 = 100%Incorrect
Answer 1) 100%
Explanation Required percentage = 800/800 × 100 = 100% 
Question 5 of 10
5. Question
1 pointsCategory: Quantitative AptitudeDirections (Q15). There are total 6400 voters in three villages A, B and C. Ratio of total voters in A, B and C is 6:7:3 respectively. Ratio of male voters in A to male voters in B is 4:3. Number of male voters in B are 50% more than the male voters in C. Ratio of female voters in A to female voters in B is 1:2.
What is the difference between average number of female voters in A and B together to the average number of male voters in B and C together?
Correct
Answer 4) 200
Explanation Average number of female voters in A and B together = (800 + 1600)/2 = 1200
Average number of male voters in B and C together = (1600 + 400)/2 = 1000
Required difference = 1200 – 1000 = 200Incorrect
Answer 4) 200
Explanation Average number of female voters in A and B together = (800 + 1600)/2 = 1200
Average number of male voters in B and C together = (1600 + 400)/2 = 1000
Required difference = 1200 – 1000 = 200 
Question 6 of 10
6. Question
1 pointsCategory: Quantitative AptitudeThere are ‘x’ number of white and 15 black marbles in a bag. The probability of taking out one white marble is 4/7. What is the total number of marbles in the bag?
Correct
Answer 3) 35
Explanation Probability of taking out one white marble = x/(x + 15) = 4/7
Therefore, 7x = 4x + 60
3x = 60, x = 20
Total number of marbles = 20 + 15 = 35Incorrect
Answer 3) 35
Explanation Probability of taking out one white marble = x/(x + 15) = 4/7
Therefore, 7x = 4x + 60
3x = 60, x = 20
Total number of marbles = 20 + 15 = 35 
Question 7 of 10
7. Question
1 pointsCategory: Quantitative AptitudeA boat takes 15 hours to cover a certain distance upstream and it takes 11 hours to cover the same distance downstream. What is the ratio of speed of boat in still water to the speed of the current?
Correct
Answer 4) 13:2
Explanation Ratio of time takes for going same distance upstream to downstream = 15:11
Ratio of speeds will be opposite i.e. 11:15
Let the speed of boat upstream is 11x and the speed downstream is 15x.
Speed of boat in still water = (11x + 15x)/2 = 13x
Speed of current = (15x – 11x)/2 = 2x
Required ratio = 13x:2x = 13:2Incorrect
Answer 4) 13:2
Explanation Ratio of time takes for going same distance upstream to downstream = 15:11
Ratio of speeds will be opposite i.e. 11:15
Let the speed of boat upstream is 11x and the speed downstream is 15x.
Speed of boat in still water = (11x + 15x)/2 = 13x
Speed of current = (15x – 11x)/2 = 2x
Required ratio = 13x:2x = 13:2 
Question 8 of 10
8. Question
1 pointsCategory: Quantitative AptitudeLength of a train A is 240 m and its speed is 25 m/s. It crosses a train B of length 210 m in 7.5 sec. What is the speed of train B?
Correct
Answer 1) 126 km/h
Explanation Let the speed of train B is x.
Then, according to question
(240 + 210)/(25 + x) = 7.5
By solving, we have, x = 35 m/s = 35 × 18/5 = 126 km/hIncorrect
Answer 1) 126 km/h
Explanation Let the speed of train B is x.
Then, according to question
(240 + 210)/(25 + x) = 7.5
By solving, we have, x = 35 m/s = 35 × 18/5 = 126 km/h 
Question 9 of 10
9. Question
1 pointsCategory: Quantitative AptitudeA can do a piece of work in 24 days. B is 60% more efficient than A. Both of them started working together but B left after 5 days and remaining work was completed by A alone. Number of days for which A worked alone is:
Correct
Answer 2) 11 days
Explanation No of days taken by A to complete work alone = 24 days
No of days taken by B = 24/160 × 100 = 15 days
We have,
Let the number of days for which A worked alone is x
Then, 13 × 5 + 5x = 120
5x = 55, x = 11Incorrect
Answer 2) 11 days
Explanation No of days taken by A to complete work alone = 24 days
No of days taken by B = 24/160 × 100 = 15 days
We have,
Let the number of days for which A worked alone is x
Then, 13 × 5 + 5x = 120
5x = 55, x = 11 
Question 10 of 10
10. Question
1 pointsCategory: Quantitative AptitudeA and B start at the same time with speed of 60 km/h and 80 km/h respectively. In covering the journey A takes 20 min more than B. What is the total distance of the journey?
Correct
Answer 2) 80 km
Explanation Ratio of speeds of cars A and B = 60:80 = 3:4
Ratio of time taken by them = 4:3
Time taken by B to complete the journey = 20/1 × 3 = 60 min = 1 hour
Distance of the journey = 80 × 1 = 80 kmIncorrect
Answer 2) 80 km
Explanation Ratio of speeds of cars A and B = 60:80 = 3:4
Ratio of time taken by them = 4:3
Time taken by B to complete the journey = 20/1 × 3 = 60 min = 1 hour
Distance of the journey = 80 × 1 = 80 km
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