Answers ( 2 )
  • See question detail

    300 - 12 = 288 ( cakes )

     answer : 288 cakes

  • See question detail

    Put : A= 1 +2 + 22 + 23 + ..... + 22000

     => 2A = 2 x ( 1+ 2 + 22 + 23 +....+ 22000 )

         2A = 2 + 22 + 23 + ..... + 22001

    => 2A-A= (2 + 22 + 23 + ..... + 22001)- ( 1 +2 + 22 + 23 + ..... + 22000)

    => A = 22001 - 1