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Ali was asked to paint a wall of are 84cm² . In one hour, he finished painting 21cm² of the wall. What percentage of the wall was painted?

Sagot :

Answer:

25%

Step-by-step explanation:

21/84 = 7/28 = 1/4 by simplifying.

1/4 = 0.25 by dividing

0.25 = 25% by multiplying 100 and adding the percent sign.