Question 747576
First we find 3 numbers that equal 6. These are:
4+1+1
2+2+2
3+2+1

Then we follow the instructions:
Each number is increased by 20:
(4+20)+(1+20)+(1+20)=24+21+21
(2+20)+(2+20)+(2+20)=22+22+22
(3+20)+(2+20)+(1+20)=23+22+21

New numbers are multiplied by 10:
(24*10)+(21*10)+(21*10)=240+210+210=660
(22*10)+(22*10)+(22*10)=220+220+220=660
(23*10)+(22*10)+(21*10)=230+220+210=660

Good Luck!
Mike