exam Maths Puzzle Numerical Ability

the problem is log8(11-6x)=log8(1-x) the book says no solution but I keep coming up with positive 2.
log8 on each side of the equation divides out equally on both sides which leav

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exam Other Question

I asked this question a few days ago and I am waiting for an answer. I hope I will get one today.
Suppose that you save for retirement by contributing the same amount each month heres the question: An ant crawls the height of a tennis ball can that has exactly enough space to contain 3 tennis balls. Another ant crawls around the lip of the can. Which one covers a longer distance?