However, he added "a study conducted by the World Bank found out that it costs just 10 dollars per pupil per year to equip teachers in Malawi with tools to ensure no child is left behind in relation to achieve basic reading skills."
The World Bank said Patrinos has therefore launched reading programmes in several developing countries.
The expert added that an estimated 25 percent of children in developing countries cannot read and write, while 50 per cent of all kids in middle-income countries are "technically illiterate", meaning they are unable to understand or interpret small text.
In Sub-Saharan Africa, "we found out that 61 million people cannot read", said Patrinos.
Click here for more Education News
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)
Election Results for Lok Sabha Election 2019 will be out on May 23. Get the latest election news and live updates on ndtv.com/elections. Catch all the action on NDTV Live. Like us on Facebook or follow us on Twitter and Instagram for news updates from each of the 543 parliamentary seats for the election 2019