mahender v

• Oct 6th, 2007

 

each tire with 8000 miles
2   2

2    2                reserve tire=0miles now change the tire,

after 2000miles
 
2    4

4    4                reserve tire=2000miles

after 2000miles
4    4

6    6               reserve tire=4000miles now change the tire,
after 2000miles

6    6

8    6               reserve tire=6000

after 2000miles

8    8

8    8              reserve tire=8000


so ans is 8000.

subhrojitn

 Profile Answers by subhrojitn 

• Feb 9th, 2008

 

if you travel 10000 miles on 4 tyres total distance on each added up == 40000 miles.so 40000 miles on 5 tyres = 40000/5 miles=8000 miles