Book Maths Puzzle

What will be the length of the longest rod which can be placed in a box of 80 cm length, 40 cm breadth and 60 cm height?

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Book Other Question

A rectangular plot measuring 90 metres by 50 metres needs to be enclosed by wire fencing such that poles of the fence will be kept 5 metres apart. How many poles will be needed? A student's mark was wrongly entered as 83 instead of 63. Due to that the average marks for the class got increased by half 1/2. What is the number of students in the class?