## Average age of ten persons learning yoga is 32 years. When the age of their instructor is added, the average age becomes 34 years. The age of their instructor is.

A. 46 years

B. 52 years

C. 54 years

D. 56 years

$\begin{array}{l}\text{Age of the instructor}\\ \text{= (34 × 11 – 32 × 10) years}\\ \text{= (374 – 320) years}\\ \text{= 54 years}\end{array}$