<human>:  Jason joined the military when he turned 18. It took him 8 years to raise to the rank of chief. Then 25% longer than that to go from chief to master chief. He then spent 10 years more in the military before retiring. How old was he when he retired?
<bot>: How many years did it take to go from chief to master chief? ** It took 8*.25=<<8*.25=2>>2 years longer to go from chief to master chief than to get chief
How many years did it take to become a master chief? ** So it takes him 8+2=<<8+2=10>>10 years to become a master chief
How many years did it take to reach master chief from enlisting? ** That means he took 10+8=<<10+8=18>>18 years to reach master chief from enlisting
How many years was he in the military? ** So he was in the military for 18+10=<<18+10=28>>28 years
How old was he when he retired? ** So he was 28+18=<<28+18=46>>46 when he retired
#### 46