For a continuous and oriented fiber-reinforced composite, the moduli of elasticity in the longitudinal and transverse directions

Question:

For a continuous and oriented fiber-reinforced composite, the moduli of elasticity in the longitudinal and transverse directions are 19.7 and 3.66 GPa (2.8 × 106 and 5.3 × 105 psi), respectively. If the volume fraction of fibers is 0.25, determine the moduli of elasticity of fiber and matrix phases.