Devin teaches one math course per year. He taught Calculus for 4 years, Algebra for twice as many years, and Statistics for 5 times as long as he taught Algebra. How many years has Devin taught?
Девин ҳар сол як курси математика таълим медиҳад. Вай 4 сол ҳисоб differential (Calculus) таълим додааст, 8 сол алгебра (Algebra) таълим додааст, ва 40 сол статистика (Statistics) таълим додааст, ки 5 маротиба бештар аз алгебра мебошад. Девин чанд сол таълим додааст?
How many years did Devin teach Calculus? ** Calculus: <<4=4>>4 years
How many years did Devin teach Algebra? ** Algebra: 4(2)=8 years
How many years did Devin teach Statistics? ** Statistics: 8(5)=<<8*5=40>>40 years
How many years has Devin taught? ** Total number of years taught: 4+8+40=<<4+8+40=52>>52 years
#### 52
How many years did Devin teach Calculus? ** Calculus: <<4=4>>4 сол
How many years did Devin teach Algebra? ** Algebra: 4(2)=8 сол
How many years did Devin teach Statistics? ** Statistics: 8(5)=<<8*5=40>>40 сол
How many years has Devin taught? ** Total number of years taught: 4+8+40=<<4+8+40=52>>52 сол
#### 52