Hindi
To solve this problem, we must determine the order of the 10 books, adhering to the given conditions. We have:
- 3 Geography books (G)
- 3 Hindi books (H)
- 2 Mathematics books (M)
- 2 Economics books (E)
Here are the constraints provided:
- There is an Economics book between a Geography and a Mathematics book. (G, E, M)
- There is a Geography book between a Mathematics and an Economics book. (M, G, E)
- There is a Hindi book between an Economics and a Mathematics book. (E, H, M)
- There is a Mathematics book between two Hindi books. (H, M, H)
- There are two Hindi books between a Mathematics and a Geography book. (M, H, H, G)
Let's arrange the books step-by-step:
- From constraint 4: H, M, H.
- From constraint 5: M, H, H, G.
- To satisfy both, place them as: M, H, M, H, G.
- Now, integrate the remaining constraints into this setup:
Working with the rest of the constraints:
- From constraint 1: Choose (M, G) from existing and place E between them: M, G, E. One possible arrangement already supporting constraint 2 and 1 is: E, G, M.
- Add in Hindi and Economics, starting from the remaining Geography: M, H, M, H, G, E, G, E.
- The chronological sequence of books becomes:
- E
- G
- M
- H
- M
- H
- E
- G
- ......(two remaining Hindi and Economics)
| Position | Book |
|---|---|
| 1 | Economics (E) |
| 2 | Geography (G) |
| 3 | Mathematics (M) |
| 4 | Hindi (H) |
| 5 | Mathematics (M) |
| 6 | Hindi (H) |
| 7 | Economics (E) |
| 8 | Geography (G) |
| 9 | Hindi (H) |
| 10 | Mathematics (M) |
According to the arrangement, the sixth book is "Hindi." Hence, the correct answer is Hindi.
Important Questions from Ordering and Ranking
In a row, Mansi is 29th from the left and 33rd from the right. How many students are there in the row?
A class has a total of 60 students. Student 'B' is at 41st rank in merit order from the bottom. What is the rank of student 'B' from the top?
A medical representative plans to visit each of six hospitals — A, B, C, D, E and F — exactly once during the course of one day. He is setting up his schedule for the day according to the following conditions:
i. He must visit A before B and E.
ii. He must visit B before D.
iii. The third hospital he visits must be C.
Which of the following could be the possible order in which the medical representative visits the six hospitals?Sonam is older than Renu. Komal is younger than Renu. Priya is older than Sonam. Who is the eldest of them?
Five men P, Q, R, S and T are reading a newspaper. The one who reads it first, gives it to T. The one who reads it last, had taken it from R. Q is not the first or last one to read it. There were two readers between P and R. Who is the third one to have read the newspaper?
