Each of these questions consists of a question followed by informations in three statements. You have to study the question and the statements and decide that information in which of the statement(s) is/are necessary to answer the question.
What is the area of right angled trangle ?
(A) The perimeter of a triangle is 30 cm.
(B) The ratio between the base and the height of the triangle is 5:12.
(C ) The area of the triangle is equal to the area of a rectangle of length 10 cm.

Options

A. I and II only
B. II and III only
C. I, and III only
D. III, and either I or II only

Answer

A