The ratio of boys to girls at the assembly was 5 to 4. If there were 180 students at the assembly, how many girls were there? Ex plain why your answer is reasonable.
2 answers:
The ratio b : g = 5 : 4 the sum of the ratio = 5 + 4 = 9Find the number of girls girls = the ratio of girls/the sum of the ratio × the sum of students girls = 4/9 × 180 girls = (4 × 180)/9 girls = 720/9 girls = 80There are 80 girls
Boys to girls ratio - 5 to 4. 5 + 4 = 9. 180 divided by 9 equals 20. 20 times 4 equals 80.
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