M Bhatt

assume that they will sell x tickets on the first day. Sale on second day will be x-10 third day x-20 fourth day x-30 fifth day x-40 if we add them all up x+x-10+x-20+x-30+x-40=200 5x-100=2== 5x=300 x=60 so they have to sell 60 on the first day 50 on the...