exam
Maths Puzzle
Numerical Ability
A garden area is 30ft long and 20 ft wide. A path of uniform width is set around the edge. If the remaining garden area is 400ft^2, what is the width of the path?
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exam Other Question
Simplify by combining like terms
2 sqrt (5x) + 5 sqrt (5x) - sqrt (5x)
Find the area under the normal distribution curve to the right of z = –1.03.
Can you explain this for me?