In a speech about the importance of installing new and safer school playground equipment, which reason does not effectively expr
1 answer:
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The total runners who began the marathon is 1000
<u>Explanation:</u>
Given:
Runners who completed the marathon = 90%
Men = 30%
Number of men completed the marathon = 270
Total runners who began the marathon = ?
Let the total runners be x
According to question:
Runners who completed the marathon =
= 0.9x
and,
Solving further:
Therefore, total runners who began the marathon is 1000