Campus
Maths Puzzle
Numerical Ability
400 people participated in 100 m running race 35% were girls and 20% of the girls failed to reach the destination. If 75% of the children completed the race find the number of boys who completed race
Read Solution (Total 3)
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- 188 boys completed the race
- 10 years agoHelpfull: Yes(4) No(1)
- total
boy+girls=400
total completed = 400 x 75/100 = 300 (children = boys + girls)
number of girls = 400 x 35/100= 140
completed girls = 140 - (140 x 20/100)= 112
completed boys = 300 - 112 = 188 - 10 years agoHelpfull: Yes(1) No(0)
- total children=400
total completed = 400 x 75/100 = 300 (children = boys + girls)
number of girls = 400 x 35/100= 140
fail girls = 140*20/100=28
girls children completed the race= 140-28=112
completed boys = 300 - 112 = 188 - 10 years agoHelpfull: Yes(1) No(0)
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