**CSAT 2021 | DDSQ Feb 10 | Civil Services | IAS | UPSC | State PSC | SSC | IBPS | NDA | CDS | Railways**

The average age of a teacher and three students is years. If all the three students are of same age and the difference between the age of the teacher and each student is years, then what is the age of the teacher?

years

years

years

years