SOLUTION: If 15% of x is 45, what is 20% of x?

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Question 301921: If 15% of x is 45, what is 20% of x?

Answer by london maths tutor(243) About Me  (Show Source):
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x = 45 x 100/15
x = 300
20% of 300 = 20/100 x 300 = 60