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
- A.
118 km
- B.
108 km
- C.
180 km
- 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।