exam Maths Puzzle Numerical Ability

Write the fraction as a percent.
1 1/5 (One and one/fifth)

can someone please help me with this? I have never been good with these kind of problems and obviously nothing has changed. I just do not understand how to do this.

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exam Other Question

y=(4-x)-1
this is is a square root
Solve for the approximate value of x: In x=3
Is it 3?