Ashutosh can cover A certain distance in 84 minute by covering 2/3 of distance at 4km/h and the rest at 5km/h find the total distance
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speed = distance / time
given time=84 min
time = 84/60(to convert into hours divide with 60)
time = distance/speed according to given data we take
2/3 distance is covered with speed of 4kmph
remaining distance= 1-(2/3) = 1/3 is covered with speed of 5kmph
84/60 = (2/3 d ) ÷4 + (1/3d) ÷ 5
84/60 = 2/3*4 d + 1/3*5 d
84/60= 2/12d + 1/15d
84/60= 14d/60
d=6km
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