A

Admin • 828.70K Points
Coach

Q. The average age of 14 girls and their teacher’s age is 15 years. If the teacher’s age is excluded, the average reduces by 1. What is the teacher’s age?

  • (A) 32 years
  • (B) 35 years
  • (C) 30 years
  • (D) 29 years
  • Correct Answer - Option(D)
  • Views: 11
  • Filed under category Math
  • Hashtags:
Explanation by: Admin
According to question ,
Total age of 14 girls + 1 teacher = 15 × 15 = 225 yrs.
Average age of 14 girls = 14 yrs.
∴ Total age of 14 girls = 14 × 14 = 196 yrs.
∴ Teacher’s age = 225 – 196 = 29 yrs.

You must be Logged in to update hint/solution

Discusssion

Login to discuss.

Be the first to start discuss.