Question

Two friends K and L are at points R and S respectively. K heads from R toward S at a speed of (x – 4) km/h. After 2 hours, L starts from S toward R at (x + 4) km/h. They meet exactly at the midpoint of RS. If RS = 234 km, find the total time taken by K to go from R to S.

A 18 hrs
B 20 hrs
C 13 hrs
D 24 hrs
E None of these
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