Annual depreciation=110-10/10=100,000
Net cash flow per year during the period of use=60-45+10=250,000
25*(P/A,10%,10)*(P/S,10%,2)+30*(P/S,10%,12)-20*(P/S,10%,2)-40*(P/S. 10%,1)-70
=25*6.1446+30*0.3186-20*0.8264-40*0.9091-70
=766,500
The project's NPV is greater than 0 and is feasible.
For reference.