exam Maths Puzzle Numerical Ability

f(x)=√x-1

^^ its f(x)= [square root] x-1

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exam Other Question

Square root of x/1-x + square root 1- x/x = 13/6 I need help with this problem

Ron will rent a car for the weekend. He can choose one of two payment plans. The first plan costs for two days plus cents per mile. The second pl