Question

please solve this questions

Answer 1

the fraction of people travelled by car =1-(1/20+1/12+2/5)=1-(3+5+24/60)=1-32/60=28/60=7/15 Ans

Answer 2

the sum of all fractions must be one 1

let fraction of people travelled by car is 'f'
so
1/20 + 1/12 + 2/5 + f = 1
f = 1 - (1/20+1/12+2/5)
f = 1-(8/15)
f = 7/15

hope it helps you
@di