In a marathon, 90% of runners managed to complete it 30% of them were men. If 270 men completed it. How many total runners began the marathon?
Answers
TOTAL MARATHON RUNNERS=900
Step-by-step explanation:
FIRST FIND THE NUMBER OF PEOPLE WHO COMPLETED THE RUN
90% 30%
X 270 NOW CROSS MULTIPLY TO GET X BEING THE TOTAL NUMBER OF RUNNERS WHO COMPLETED THE MARATHON
X=270×90÷30=810
NOW USE 810 TO FIND THE TOTAL RUNNERS
100% 90% CROSS MULTIPLY X=810×100÷90=900
X 810
TOTAL RUNNERS =900
I HOPE THE WORKING IS EASY TO UNDERSTAND IF NOT LET ME KNOW PERHAPS I COULD TRY AND SIMPLIFY IT FOR YOU...
Answer:
1000 runners began the race.
Step-by-step explanation:
Let the total number who began the race be x.
Those who completed the race were 90% of x which is = 0.90x × 0.30 = 0.27x
The number of men who completed the race are 270 men.
From the workings above we have the number of men who completed the race.
0.27x = 270
x = 270/0.27
x = 1000
Therefore the number of people who began the race were 1000 both women and men.