book Maths Puzzle Numerical Ability

what is the decimal for 45%

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book Other Question

solve Inx-1.456. Round answer to 4 decimal places Use this problem for #3 and 4.
Lucy rides her bike 4 km/h faster than Kim.
Lucy travels east for 2 hours.
Kim travels west for 2 hours.
They are then 80 km apart.
How many km/h is Kim traveling?