Question
Glen wanted to cut small identical 5 cm by 3 cm rectangles from a rectangular cardboard measuring 21 cm by 20 cm. What is the maximum number of complete small rectangles Glen could cut? (Note: Glen could rotate the small rectangle.)
3 m

Click button first when a symbol is required. X

Glen wanted to cut small identical 5 cm by 3 cm rectangles from a rectangular cardboard measuring 21 cm by 20 cm. What is the maximum number of complete small rectangles Glen could cut? (Note: Glen could rotate the small rectangle.)