A man 18

A man walks for t1 hours at 4 km/h and then for t2 hours at 3 km/h. If he walks 29 km in 8 hours altogether, find the value of t1 and t2, respectively.

Correct answer:

t1 =  5 h
t2 =  3 h

Step-by-step explanation:

v1=4 km/h v2=3 km/h t=8 h s=29 km  t1+t2 = t s1+s2=s v1 t1+v2 t2 = s  v1 t1+v2 (tt1)=s 4 t1+3 (8t1)=29  t1=5  t1=15=5  t1=5=5 h
t2=tt1=85=3 h



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