Playing true to expectation and using the home conditions well, Rajasthan Royals moved towards their eleventh successive victory, riding on a disciplined performance by their bowlers.
For Rajasthan Royals, Cooper (4 for 18) was the most successful bowler, while Pravin Tambe (2 for 17), James Faulkner (2 for 15) and Shane Watson (1 for 23) also contributed with the ball.
Cooper dismissed Hilton Cartwright (5), Voges (27), Joe Mennie (2) and Ashton Turner (11).
Perth lost Liam Davis (18) in the third over and the slide continued with wickets falling till the last delivery of the innings.
More From This Section
Their specialist batsman Adam Voges was the top scorer with 27 made off 21 balls and the rest of the batting looked pretty inept as they wasted their starts and could never build up a momentum.
Half of the Scorchers side, including Voges, were back to the pavillion within 11.3 overs with the score reading 77.