Maths Problem 1
A boy goes to the school with the speed of 3 km/hr and returns with the speed of 2 km/hr. If he takes 5 hours, in all, then how do you find the distance (in km) between house to the school?
Answer :-
Let the distance be x km
S1 = 3km/h
S2 = 2km/h
d = x km
d = x km
t1 = d/s = d/3 t2
= d/s = d/2
Total Time = t1+t2 = 5
ð
=> d/2 + d/3
= 5
ð 3x
+ 2x / 6 = 5
ð
5x
= 30
ð
x
= 30/5
= 6 km
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