Nigeria, July 8 -- The United States President, Donald Trump, paid his way out of high school, hiring someone else to take an aptitude test for him, his niece, Mary Trump, reveals.

Mary, in her forthcoming book- 'Too Much and Never Enough: How My Family Created the World's Most Dangerous Man', claimed Mr Trump did not write the Scholastic Assessment Test (SAT) himself.

Ms Trump's book is set to be released next week and be up for sale by Tuesday.

According to a copy of book obtained by Washington Post, Mr Trump paid someone to take the standardised test for him and got a score that helped him gain admittance to the Wharton School at the University of Pennsylvania as an undergraduate.

Mr Trump was "worried that his grade point average,...