exam Maths Puzzle Numerical Ability

hi please answer my problem

its a diagram so i cant type it

i dont understand how to do the problem

please and thank you so much

i appreciate it

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exam Other Question

It takes Deepak 50 minutes to shovel snow from his sidewalk and driveway. When he works with his brother, Kamal, it takes only 30 minutes. How long would it take Kamal by himself? Choose a rectangle from your shapes set or draw your own. Find several ways that copies of your rectangle can be used to cover or tile a surface. Make sketches of the patterns you discover.