the balcony in acircus tent has780 seats.the number of seats from first row to last row follows an

Asked by riyaliz | 22nd Jul, 2008, 10:30: PM

Expert Answer:

the first row == 36 seats , the second row == 40   ,, so the common difference = 4

 the number of rows  Tn  ==  36  +  [ n-1]  x 4== 780

                                                             [  n - 1] x4  = 780  --36 == 744

                                                              [ n - 1]  == 744  / 4 = 186

                                                                 so  number of seats  = 186 + 1 = 187

Answered by  | 23rd Jul, 2008, 05:10: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.