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Given below are three quantities named 1, 2 and 3. Based on the information, you have to determine the relation among the three quantities. You should use the given data and knowledge of Mathematics to choose between the possible answer. The options represent the relations among three quantities. A. <  B. = C. > D. ≤ E. ≥ Quantity 1: The average age of 36 students is 14 years. When the teacher’s age is included the average increases by 1 year. What is the age of the teacher? Quantity 2: The average salary of the entire staff in an office is Rs. 120 per month. The average salary of officers is Rs.460 and that of non- officers are Rs.110. if the number of officers is 15, then find the number of non-officers in the office. Quantity 3: 25

Given below are three quantities named 1, 2 and 3. Based on the information, you have to determine the relation among the three quantities. You should use the given data and knowledge of Mathematics to choose between the possible answer. The options represent the relations among three quantities. A. <  B. = C. > D. ≤ E. ≥ Quantity 1: The average age of 36 students is 14 years. When the teacher’s age is included the average increases by 1 year. What is the age of the teacher? Quantity 2: The average salary of the entire staff in an office is Rs. 120 per month. The average salary of officers is Rs.460 and that of non- officers are Rs.110. if the number of officers is 15, then find the number of non-officers in the office. Quantity 3: 25 Correct Answer A, C

Quantity 1:

Age of teacher = 14 + 37 × 1 = 51 years.

Quantity 2:

Let the required number of non-officers be x

Then, 110x + 460 × 15 = 120(15 + x)

⇒ 120x – 110x = 15(460 – 120)

⇒ 10x = 15 × 340

⇒ x = 510

Quantity 3: 25

So, quantity 1 < quantity 2 > quantity 3.

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