The Greyhounds jumped out to their largest lead of the game at 30-22 with 6:12 remaining in the first half, but the Boilermakers went on a 19-4 run to take a 41-34 halftime lead. Ronnie Johnson, Sterling Carter and Jay Simpson all hit three-pointers in the run.
Midway through the second half, Purdue went on a 13-0 tear to extend a 55-51 lead to a 68-51 advantage with 11:21 remaining. Five different Boilermakers scored during that stretch.
Senior guard Terone Johnson led Purdue with 17 points. Besides Davis and Scott, the other Boilermakers in double-figures scoring were freshman Kendall Stephens with 11 and Simpson with 10.
Scott, a freshman, added five rebounds and was 9-of-10 from the free-throw line. Davis, a sophomore, also had four rebounds.
Purdue shot just 25-of-64 (.391) from the field, 6-of-24 (.250) from three-point range and 24-of-35 (.686) from the free-throw line. Both teams had 43 rebounds, and Purdue had just nine turnovers while forcing the Greyhounds into 13 miscues.
Indianapolis shot 27-of-60 (.450) from the field, 5-of-9 (.556) from three-point range and 14-of-26 (.538) from the free-throw line. Purdue blocked 10 shots, led by Travis Carroll and Stephens, each with three blocked shots.
The Boilermakers return to action at 7 p.m. Monday against Wayne State (Neb.) at Mackey Arena. It will be the final exhibition tune-up before the regular season begins Nov. 8 against Northern Kentucky.