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A person, who decided to go to weekend trip should not exceed 8 hours driving in a day. Average speed of forward journey is 40 m/h. Due to traffic in Sundays, the return journey average speed is 30 m/h. How far he can select a picnic spot?a) 120 milesb) Between 120 and 140 milesc) 160 miles
120 miles
RAJU KUMAR
- Oct 23rd, 2011
B)
let he can select a picnic spot =x m
.
. . x/40+x/30=8
x=137.1 m
so ans is b.rajendraprasad349
- Aug 27th, 2010
Let distance = 'd'
Let us assume forward journey time is 't1'
Return journey time is 't2'
Given t1+t2=8
But time = distance / velocity
t1 = d/40
t2 = d/30
Therefore t1+t2 = d/40 + d/30 = 8
d=137.142
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Editorial / Best Answer
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Editorial / Best Answer
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One Part
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A man walks at a speed of 4km/hours
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maxz71
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4 km/hr from A to B = s1
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Answer ratio is 2:1
Check if its correct..
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