exam Maths Puzzle Numerical Ability

Sally walks 3 miles north of her farm, turns west and walks 4 miles. How far must she walk if she can walk directly back to her farm?

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exam Other Question

Suppose that a person deposits a total $9,000 for one year. Part of the money is deposited in an account paying 2.1% interest, and the rest is deposited in an account paying 2.4% What would be the radius of a circle with a diameter of 8 inches?