The average age of 40 students in a class is 15 years. When 10 new students are admitted, the average increases by 0.2 years. What is the average age of the new students? एक कक्षा के 40 छात्रों की औसत आयु 15 वर्ष है। जब 10 नए छात्रों को प्रवेश दिया जाता है, तो औसत 0.2 वर्ष बढ़ जाता है। नए छात्रों की औसत आयु है|

The average age of 40 students in a class is 15 years. Wh... - Average MCQ Solution

Step 1: Total age of 40 students

Average = 15 years
So total age = $40 \times 15 = 600$

Step 2: New average after 10 students join

New total students = 50
New average = $15 + 0.2 = 15.2$

So new total age = $50 \times 15.2 = 760$

Step 3: Total age of 10 new students

$760 - 600 = 160$

Step 4: Average age of new students

$\frac{160}{10} = 16$

Final Answer: 16 year