The kids surveyed were further divided into two groups based on whether their mothers dropped out of school before completing primary education or not. The table below gives the number of kids in different types of schools for mothers who dropped out- of school before completing primary education:
It is also known that:
1. In S, 60% of the surveyed kids were m G. Moreover, in S, all surveyed kids whose mothers had completed primary education were in school.
2. In NE, among the O kids, 50% had mothers who had dropped out before completing primary education.
3. The number of kids in G in NE was the same as the number of kids in G in W.
What percentage of kids from S were studying in P?
- 37%
- 6%
- 79%
- 56%
The Correct Option is A
Solution and Explanation
Using the provided table for children in various schools with mothers who lacked formal education, we will introduce an additional set of values. These new values will specifically indicate the number of children in different types of schools, but in this case, their mothers have completed primary education.
Out of the total 10,000 students in S, the sum of 300 and 3400, which is 3700, represents the number of students studying in P. This corresponds to a percentage of 37%.
Among the kids in W whose mothers had completed primary education, how many were not in school?
- 300
- 1200
- 1050
- 1500
The Correct Option is A
Solution and Explanation
Using the provided table for children attending various schools, whose mothers did not complete their education, we will introduce additional values. These new values will specifically denote the number of children in different types of schools, now considering those whose mothers completed primary education.
In the W category, there were 300 children whose mothers had completed primary education and were not attending school.
In a follow up survey of the same kids two years later, it was found that all the kids were now in school. Of the kids who were not in school earlier, in one region, 25% were in G now, whereas the rest were enrolled in P; in the second region, all such kids were in G now; while in the third region, 50% of such kids had now joined G while the rest had joined P. As a result, in all three regions put together, 50% of the kids who were earlier out of school had joined G. It was also seen that no surveyed kid had changed schools.What number of the surveyed kids now were in G in W?
- 6000
- 5250
- 6750
- 6300
The Correct Option is A
Solution and Explanation
Using the provided table for children attending various schools, whose mothers did not complete their education, we will introduce additional values. These new values will specifically denote the number of children in different types of schools, now considering those whose mothers completed primary education.
Initially, there were 2400 students not attending school. With 1200 of them now in G and considering the provided percentages, the only plausible scenario is that 50% of students in W, 25% of students in NE, and 100% of students in S who were not attending school shifted to G.
Therefore:
- 50% of W = 50% of 1500 = 750
- 25% of NE = 25% of 600 = 150
- 100% of S = 100% of 300 = 300
The total comes to 1200 students, and now there are a total of 4200 + 1050 + 750 = 6000 students attending G from the W category.
In a follow up survey of the same kids two years later, it was found that all the kids were now in school. Of the kids who were not in school earlier, in one region, 25% were in G now, whereas the rest were enrolled in P; in the second region, all such kids were in G now; while in the third region, 50% of such kids had now joined G while the rest had joined P. As a result, in all three regions put together, 50% of the kids who were earlier out of school had joined G. It was also seen that no surveyed kid had changed schools. What percentage of the surveyed kids in S, whose mothers had dropped out before completing primary education, were in G now?
- 94.7%
- 89.5%
- 93.4%
- Cannot be determined from the given information
The Correct Option is A
Solution and Explanation
Using the provided table for children attending various schools, whose mothers did not complete their education, we will introduce additional values. These new values will specifically denote the number of children in different types of schools, now considering those whose mothers completed primary education.
As mentioned earlier, all 300 students in S who were not attending school have now shifted to G. Out of the total 5700 students in S regions whose mothers had dropped out, 5400 are currently enrolled in G.
The required percentage = \(\frac{5400}{5700}\times100=94.7\%\)
Top Questions on Data Analysis
- The figure below shows a network with three parallel roads represented by horizontal lines R-A, R-B, and R-C and another three parallel roads represented by vertical lines V1, V2, and V3. The figure also shows the distance (in km) between two adjacent intersections. Six ATMs are placed at six of the nine road intersections. Each ATM has a distinct integer cash requirement (in Rs. Lakhs), and the numbers at the end of each line in the figure indicate the total cash requirements of all ATMs placed on the corresponding road. For example, the total cash requirement of the ATM(s) placed on road R-A is Rs. 22 Lakhs.
The following additional information is known.
The ATMs with the minimum and maximum cash requirements of Rs. 7 Lakhs and Rs. 15 Lakhs are placed on the same road.
The road distance between the ATM with the second highest cash requirement and the ATM located at the intersection of R-C and V3 is 12 km.
- The two plots below give the following information about six firms A, B, C, D, E, and F for 2019 and 2023.
PAT: The firm’s profits after taxes in Rs. crores,
ES: The firm’s employee strength, that is the number of employees in the firm, and PRD: The percentage of the firm’s PAT that they spend on Research and Development (R&D).
In the plots, the horizontal and vertical coordinates of point representing each firm gives their ES and PAT values respectively. The PRD values of each firm are proportional to the areas around the points representing each firm. The areas are comparable between the two plots, i.e., equal areas in the two plots represent the same PRD values for the two years.
- The numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 are placed in ten slots of the following grid based on the conditions below
1. Numbers in any row appear in an increasing order from left to right.
2. Numbers in any column appear in a decreasing order from top to bottom.
3. 1 is placed either in the same row or in the same column as 10.
4. Neither 2 nor 3 is placed in the same row or in the same column as 10.
5. Neither 7 nor 8 is placed in the same row or in the same column as 9.
6. 4 and 6 are placed in the same row. - Eight gymnastics players numbered 1 through 8 underwent a training camp where they were coached by three coaches - Xena, Yuki, and Zara. Each coach trained at least two players. Yuki trained only even numbered players, while Zara trained only odd numbered players. After the camp, the coaches evaluated the players and gave integer ratings to the respective players trained by them on a scale of 1 to 7, with 1 being the lowest rating and 7 the highest.
The following additional information is known.
1. Xena trained more players than Yuki.
2. Player-1 and Player-4 were trained by the same coach, while the coaches who trained Player-2, Player-3 and Player-5 were all different.
3. Player-5 and Player-7 were trained by the same coach and got the same rating. All other players got a unique rating.
4. The average of the ratings of all the players was 4.
5. Player-2 got the highest rating.
6. The average of the ratings of the players trained by Yuki was twice that of the players trained by Xena and two more than that of the players trained by Zara.
7. Player-4's rating was double of Player-8's and less than Player-5's. - The chart below shows the price data for seven shares – A, B, C, D, E, F, and G as a candlestick plot for a particular day. The vertical axis shows the price of the share in rupees. A share whose closing price (price at the end of the day) is more than its opening price (price at the start of the day) is called a bullish share; otherwise, it is called a bearish share. All bullish and bearish shares are shown in green and red colour respectively.
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