exam Maths Puzzle Numerical Ability

Solve for x: 2log(3x)-log(8x+1)=log x I think the answer is x=0,1/2 ????

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Some bank robbers leave town speeding at 70mph. 10 mintues later police gave chase traveling at 78 mph. How long will it take the police to overtake the robbers? The volume of a cylinder (think about the volume of a can) is given by V = πr2h where r is the radius of the cylinder and h is the height of the cylinder. Suppose the volume