A raft foundation is provided if its area exceeds the plan area of the building by August 9, 2021 by admin Question: A raft foundation is provided if its area exceeds the plan area of the building by A. 10 % B. 20 % C. 40 % D. 50% Answer» d. 50% Note: The above multiple-choice question is for all general and Competitive Exams in India.