Passenger boat

Two-fifths of the passengers in the passenger boat were boys. 1/3 of them were girls and the rest were adult. If there were 60 passengers in the boat, how many more boys than adult were there?

Correct result:

x =  8

Solution:

b=60⋅ 2/5=24 g=60⋅ 1/3=20 a=60−(b+g)=60−(24+20)=16 x=b−a=24−16=8b=60 \cdot \ 2/5=24 \ \\ g=60 \cdot \ 1/3=20 \ \\ a=60 - (b+g)=60 - (24+20)=16 \ \\ x=b - a=24 - 16=8

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