40% от числа: 40,50,90,100,200,400

40-100%x-40%x=40*40/100=1650-100%x-40%x=40*50/100=2090-100%x-40%x=40*90/100=36100-100%x-40%x=40*100/100=40200-100%x-40%x=40*200/100=80400-100%x-40/0%x=400*40/100=160

1)162)203)364)405)806)160