Question
Two cars 288 km apart start at the same time moving towards each other and meet after 12 hours. If the speed of 1 car is 5 km\h faster than the other car, find the speed of each car.
Answers
Reiny
speed of slower car --- x km/h
speed of faster car ---- x+5 km/h
When they meet, each will have gone for 12 hrs
12x + 12(x+5) = 288
24x = 228
x = 9.5
slow car went 9.5 km/h, the faster went 14.5 km/h
check:
12(9.5) + 12(14.5) = 288 , the answers are correct mathematically
A poorly designed question, the answers are not realistic
speed of faster car ---- x+5 km/h
When they meet, each will have gone for 12 hrs
12x + 12(x+5) = 288
24x = 228
x = 9.5
slow car went 9.5 km/h, the faster went 14.5 km/h
check:
12(9.5) + 12(14.5) = 288 , the answers are correct mathematically
A poorly designed question, the answers are not realistic