In part (a), majority of the candidates could not translate the question into a meaningful diagram.  Others who were able to draw it took the length of the square to be r instead of 2r hence they lost some marks.  Perimeter of the square = 8r, circumference of the circle = 2pr. Thus     2pr + 8r = 100 i.e.  + 8r = 100 Þ r = 7cm.

It was reported that majority of the candidates did not attempt the part (b).  Some of them who attempted it could not manipulate the algebraic expressions involved.  Since the length was said to be four times the breadth, it means that if the breadth    = b, then length (L) = 4b. The perimeter was given as 60cm.Therefore, perimeter= 2(L + b) = 2 (4b+b) = 10b = 60. Solving this gave b = 6cm. Hence, length (L) = 6 x 4 = 24cm.  Diagonal = √242+62) = 24.7cm.