A man travelled two fifth of his journey by train, one third by bus, one…

2013

A man travelled two fifth of his journey by train, one third by bus, one fourth by car and remaining 3 km on foot. The length of his total journey is

  1. A.

    118 km

  2. B.

    108 km

  3. C.

    180 km

  4. D.

    80 km

Attempted by 2 students.

Show answer & explanation

Correct answer: C

Let the total journey be x km.

Distance travelled by train = (2/5)x km

Distance travelled by bus = (1/3)x km

Distance travelled by car = (1/4)x km

Total distance covered by train, bus, and car = (2/5 + 1/3 + 1/4)x km

To find the sum: LCM of 5, 3, 4 is 60. So, (2/5 + 1/3 + 1/4) = (24/60 + 20/60 + 15/60) = 59/60

So, total distance covered by train, bus, and car = (59/60)x km

Remaining distance = x - (59/60)x = (1/60)x km

Given that remaining distance = 3 km

So, (1/60)x = 3

Solving for x: x = 3 × 60 = 180 km

Therefore, the total journey is 180 km.

हिन्दी उत्तर:

माना कुल यात्रा x किमी है।

ट्रेन द्वारा तय की गई दूरी = (2/5)x किमी

बस द्वारा तय की गई दूरी = (1/3)x किमी

कार द्वारा तय की गई दूरी = (1/4)x किमी

ट्रेन, बस और कार द्वारा तय की गई कुल दूरी = (2/5 + 1/3 + 1/4)x किमी

योग ज्ञात करने के लिए: 5, 3, 4 का LCM 60 है। इसलिए, (2/5 + 1/3 + 1/4) = (24/60 + 20/60 + 15/60) = 59/60

इसलिए, ट्रेन, बस और कार द्वारा तय की गई कुल दूरी = (59/60)x किमी

शेष दूरी = x - (59/60)x = (1/60)x किमी

दिया गया है कि शेष दूरी = 3 किमी

इसलिए, (1/60)x = 3

x के लिए हल करने पर: x = 3 × 60 = 180 किमी

इसलिए, कुल यात्रा 180 किमी है।

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