Question

A+car+travels+180+km+in+4+hours.+How+long+will+it+take+to+travel+400+km?How+far+will+it+travel+in+12+hours?

Answer 1

if 180kM in 4 hours

a) so 1 km in (4/180)hours

so 400 km in 400×4/180=8.89 hours

b) so in 1 hour (180/4) km

so in 12 hours 12×180/4 = 540 KM