in marathon , 90% of runners managed to complete it and 30% of them were men. if 270 men completed i how many total runners began the marathon?
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Answered by
2
Answer: 1000
Step-by-step explanation: Let no. of total runner who began be X.
90% runners managed to complete.
=> 0.9*X completed the Marathon
30% of them were men.
=> 30% of (0.9*X) were men
=> 0.3*0.9*X people were men.
Given, 270 men completed.
Thus, 0.3*0.9*X = 270
=> X = 270/(0.3*0.9)
X = 1000
Answered by
1
Answer: Total no. of people who take part in the marathon are 900
Step-by-step explanation:
Let the no. of people who take part in the marathon be x
Now, A.T.Q
x/100*30 = 270
x = 900
Thus 900 people take part in the marathon
And 900/100*90 = 810
Thus 810 people managed to complete the marathon
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