(b) Write the ratio 12:30 in the form 1:n
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City A is 25% less than population of city B. So city A's population is 75% of city B
<h3><u>Solution:</u></h3>Given that City A is 25% less than population of city B
To find: city A's population is what % of city B
From given information,
City A is 25% less than population of city B
A = B - 25% of B
So we can write as,
A = 0.75B can be written as,
city A = 75 % of City B
Thus city A's population is 75% of city B