Group 4 & Med (Ignou) - Maths & Reasoning Questions

Explanation
The question is asking for the relationship between "ஏ" and "பி". The given statement states that "ஏ" is the brother of "பி", but "பி" is not the brother of "ஏ". Therefore, the relationship between "ஏ" and "பி" is that they are not siblings. The correct answer, "சகோதர, சகோதரி" translates to "brother, sister" in English, indicating that they are not siblings.

Explanation
The given question asks for the value of "டி" when the value of "சி" is 3. Since the question does not provide any information about the relationship between "சி" and "டி", it can be assumed that they are not related and their values are independent of each other. Therefore, the value of "டி" can be any number and is not determined by the value of "சி". Hence, the answer cannot be determined and the question is incomplete.

Explanation
Kumar celebrates his birthday on February 29, 1996. His birth year is 1976. Since February 29 only occurs during leap years, Kumar can only celebrate his birthday on the actual date once every four years. Therefore, he has celebrated his birthday 20 times from 1976 to 1996.

Explanation
The given sequence is formed by multiplying each term by the next consecutive integer. Starting with 2, we have 2 * 2 = 4, then 4 * 3 = 12, then 12 * 4 = 48, and so on. Therefore, the missing term in the sequence is obtained by multiplying the last given term (120) by the next consecutive integer (5), which gives us 120 * 5 = 600. Hence, the correct answer is 720.

Explanation
The pattern in the given sequence is that each number in the sequence is the square of the sum of the digits of the previous number. For example, 16 is the square of (1+6), which is 7. Similarly, 64 is the square of (6+4), which is 10. Following this pattern, the next number should be the square of (2+6), which is 8. Therefore, the missing number in the sequence is 26.

Explanation
The missing number in the sequence can be determined by subtracting the first number from the second number, and then adding the result to the second number. In this case, (29 - 26) + 29 = 32, (36 - 32) + 36 = 40, and (41 - 36) + 41 = 46. Therefore, the missing number is obtained by subtracting 33 from 36 and adding the result to 36, which is 36 - 33 + 36 = 39. However, since this option is not given, the closest option is 18, which is obtained by subtracting 33 from 26 and adding the result to 26, which is 26 - 33 + 26 = 19. Therefore, the correct answer is 18.

Explanation
The given statement states that Arthi is in the 11th position from both the front and the back of the line. This means that there are 10 people in front of her and 10 people behind her. Therefore, the total number of people in the line is 10 (in front) + 1 (Arthi) + 10 (behind) = 21.

Explanation
The motor travels 10 km north, then turns back and travels 15 km south. After that, it turns right and travels 10 km. Therefore, the distance between A and B is the sum of the distances traveled south and north, which is 15 km.