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```
Avg age of X number of adults in a class is 30yrs. If 12 new adults with avg age of 32 joined with them then the avg age increases by one. Find X?

```
9 years ago

Sudheesh Singanamalla
114 Points
```							let ad1 be adult 1 and so on
(2) - (1)
==> x+372 = 384
==> x = 384 - 372 = 12
so total number of adults = 12

```
9 years ago
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### Course Features

• 731 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions