1 x 5 @65% of 90% 1RM
1 x 5 @75% of 90% 1RM
1 x 5+ @85% of 90% 1RM

*Add 2.5 kilos to the weight you counted from last time and count from that now. So if your 1rm is 100kilos and you counted your percentages from that last time - now you count from 105. 
If you have no clue about your weights try to guess it with your coach. You can also warm up to heavy single and count from that. Warm up for work sets can be: 40% x5, 50% x5 and 60% x3 and those should be done in 10 minutes. Work sets performed every 3 minutes. The plus mark in the last set means you will do as many reps as you can with a solid technique but you should get at least 5.