$3-$ Draw the two component phase diagram from the given below $(5$ P$)$; Transform weight percentage scale to mole $\%($indicate two values on the upper axis of the diagram$)$ if MA $=59$ g$/$mole MB $=63$ g$/$mole $(5$ P$)$

$($Choose the offset of y axis at $800$ oC$).$ Draw cooling curves for $60$wt$.\%$ B $(5$ P$)$