GMAT (Graduate Management Admission Test) Question:

If the diagonal and the area of a rectangle are 25 m and 168 m2, what is the length of the rectangle?


1. 17 m
2. 31 m
3. 12 m
4. 24 m

Ans : D

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A 4 cm cube is cut into 1 cm cubes. What is the percentage increase in the surface area after such cutting?The surface area of the three coterminous faces of a cuboid are 6, 15, 10 respectively. Find the volume of the cuboid.