A person covered one-fourth of the total distance at 26 kmph and remaining distance at 24 kmph. What is the average speed for the total distance? Options.
A) 21 (1/3) kmph B) 25 (1/3) kmph C) 29 (1/3) kmph D) 20 (1/3) kmph E) 24 (1/3) kmph
21 (1/3) kmph   Let the total distance be x km   total time taken = (x/4)/16 + (3x/4)/24 = x/64 + x/32 = 3x/64   21 (1/3) kmphverage speed = x/(3x/64) = 64/3kmph = 21 (1/3)kmph.
<result>A</result>
A person covered one-fourth of the total distance at 26 kmph and remaining distance at 24 kmph. What is the average speed for the total distance?