A person covered a certain distance at some speed. Had he moved 4 km/hr faster, he
would have taken 30 minutes less. If he had moved 3 km/hr slower, he would have
taken 20 minutes more. Find the distance (in km)
84 Km
75 Km
64 Km
O 82 Km
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Answer:
Step-by-step explanation:
Distance =S1S2S1−S2×t
from both conditions,
S(S+3)3×40=S(S−2)2×40
2S+6=3S−6
S = 12 km/hr
from condition 1st
12×153×4060 = 40 km
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