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Two statements and a few problems are given. Which of the following problems can be solved through these statements? Statement I: The average age of the class is 15. Statement II: The total number of students in the class is 40 and the number of girls is 15. Problem 1: What is the number of students below age of 15 in the class? Problem 2: If a teacher of age 56 is included in the class, then what is the new average age of the class? Problem 3: What is the number of boys in the class?

Two statements and a few problems are given. Which of the following problems can be solved through these statements? Statement I: The average age of the class is 15. Statement II: The total number of students in the class is 40 and the number of girls is 15. Problem 1: What is the number of students below age of 15 in the class? Problem 2: If a teacher of age 56 is included in the class, then what is the new average age of the class? Problem 3: What is the number of boys in the class? Correct Answer Only problem 2 & 3 can be solved

Total students = 40, number of girls = 15

So, number of boys = 40 – 15 = 25 (problem 3 is solved)

Total age including teacher = 40 × 15 + 56 = 656

Average after including teacher = 656/41 = 16 (problem 2 is solved)

Since, nothing has been mentioned about the ages of students, so problem 1 cannot be solved.

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