Pedro Madrigal, a widower, has three legitimate children, Bruno, Pepa and Julieta. He executed a Will, instituting as his heirs to his estate of One Million (P1,200,000.00) Pesos, his two children Pepa and Julieta, and his friend Mirabel. Upon his death, how should Pedro's estate be divided? Explain. (b) In the preceding question, suppose Pedro instituted his two children Pepa and Julieta as his heirs in his Will, but gave a legacy of P 100,000.00 to his friend Mirabel. How should the estate of Pedro be divided upon his death? Explain.