exam Maths Puzzle Numerical Ability

Approximate 838/13 to three decimal places

Multiply and simplify the product [2sqrt(7) - sqrt(3)]2

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The width of a rectangle is 15 feet less than its length, and the perimeter is 210 feet. Find the width: 5 people are stranded on an island. The only food is coconuts. During the night the 1st person gets up and divides the pile of coconuts evenly in 5 piles but there is one left o