Respuesta :
Answer: $64.80
Step-by-step explanation:
- 2100 km road trip
- 2 friends + Sathish
- 150 km after begins and 150 km before end
- consume: 6L/100km
- cost: $1.20/L
Friends + Sathish will ride together = 2100 - 150 - 150 =
2100 - 300 = 1800 km
6L/100km = xL/1800km
100x = 6.1800
100x = 10800
x = 108 L
$1.20/L = $y/108L
y = 108*1.20
y = $129.60
Value for 3 people = $129.60
each = 129.6/3 = $43.20
Sathish alone = 300 km
6L/100km = xL/300km
100x = 6.300
100x = 1800
x = 18 L
$1.20/L = $y/18L
y = 18*1.20
y = $21.60
Total for Sathish = $43.20 + $21.60 = $64.80