A man completed a trip of 136 km in 8 hours. Some parts of the trip was covered at 15 km/he and the remaining at 18 km/he. Find the part of the trip covered at 18 km/he.
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Hey mate here is your answer
Let the trip covered at 18km/hr be x = X/18______(1)
So, part of the trip covered at 15km/hr is (136- X)=(136 - x)/15 _________(2)
on solving (1) & (2)
(136 -x)/15 + X/18 = 8
(2448 - 18x +15x )/15* 18= 8
2448 - 3x =2160
3x=288
X= 96km
Hope it will help you ✌️
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