Nigeria and Pakistan together could account for one third of the world’s children out of school by the year 2015, according to a report published on Tuesday by Unesco that highlights the “vast gulf” in education opportunities separating the developing and developed worlds.

At current trends, up to 7.6m children will not receive a basic education in Nigeria, Africa’s most populous nation, by 2015, out of 29m globally, the Education for All report predicts. In Pakistan, 3.7m children will be out of school in the same year. “Both countries suffer from weak governance and high levels of inequity in finance and provision,” the report says.