exam Maths Puzzle Numerical Ability

if the sides of a square are decreased by 3 cm, the area is decreased by 81 cm^2. what were the dimensions of the original square?

Read Solution (Total 0)

exam Other Question
what is th answer on x=y ,x^2=xy ,x^2-y^2=xy-y^2,(x-y)(x-y)=y(x-y),x+y=y,2y=y,2=1 x*+ax+b is a factor of the polynomial x^+qx*+rx+s.
Prove that r-b=a(q-a) and s=b(q-a).