Why are you dividing by 8? I believe you should be dividing by 2. Also, replace x+15d by 3x in the second equation.
A piece of cord is of length 64 m. It is cut into 16pieces whose lengths are in arithmetic
progression. The length of the longest piece is three times that of the smallest. Find the length of the shortest piece of chord.
length of shortest piece is
length of longest piece is
is it right to assume that the shortest piece is the first term and the largest piece is the last term.
is this correct?
i have formed two equations
equating the longest piece to the last term
equating the total length of cord.