OTET Paper 1 Exam 2017 Paper

A rectangular sheet of card board, shown below in Fig. - 1 is 26 cm long and 16 cm broad. Squares, each of 3 cm edge, has been removed from each corner of the paper sheet. An open cuboidal tray, as shown in Fig. - 2, was made using the remaining sheet of card board. What is the volume of the open space, in cubic cm. available in the tray?