A painter can finish painting a house in 20 days. If he has been painting for 15 days, what percent of the painting job has not completed yet?
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A painter can finish painting a house in 20 days. If he has been painting for 15 days, what percent of the painting job has not completed yet?
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Answer:
75%
My solution:
Divide 20 to 2
20÷2=10
Let 10=50% because 10 is half of 20
Divide 50% by 2 again
50%÷2=25%
Add 50% and 25% you get 75%
50%=10
25%=5
75%=15