Paper 1 · Mathematical Reasoning and Aptitude
A person performs half of his journey by train, one-third by bus, and the remaining 5 km by auto rickshaw. Find his total journey.
A30 km ✓ Correct
B25 km
C36 km
D40 km
Correct answer: (A) 30 km — His total journey is 30 km, so that is the answer.
Explanation
★His total journey is 30 km, so that is the answer.
★Let the total journey be one whole.
★Half by train and one-third by bus together is 1/2 plus 1/3, which is 5/6 of the journey.
★So the remaining part is 1 minus 5/6, which is 1/6 of the journey.
★This 1/6 equals the 5 km done by auto rickshaw, so the whole is 5 times 6.
★This gives a total journey of 30 km.
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