in a marathon,90% of runners managed to complete it amd 30% of them were men. if 270 men completed it, how many total tunners began the marathon?
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Answer:
1000 Runners !!
Step-by-step explanation:
Let total number of runners be x
Then,
No. of runners who completed = 90/100 × X
= 9x / 10
30% of them were men
= 30/100 × 9x/10
= 27x / 100
This is equal to 270
=> 27x / 100 = 270
=> x = 270 × 100 ÷ 27
=> x = 1000
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