Question 472221
Taxi fare = b
bus fare = b/10
train fare = 4b/10

b+ b/10 + 4b/10 = 30

multiply by LCD = 30
30b+3b+12b=900
45b=900
b=900/45
b=20

Taxi fare = $20
bus fare = 20/10 = $2

Train fare = 80/10 = $8