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Sumeet Sharma

· started a discussion

· 1 Months ago

incomplete question (Question: 107815.0 )

the question should mention "the time taken to meet at the starting point and not just the time taken to meet again"

Question:

A, B & C start running at the same time and in the same direction on a circular stadium. A completes a round in 252 seconds, B in 308 seconds and C in 198 seconds. After what time will they meet again?

Options:
A) 26 minutes 18 seconds  
B) 42 minutes 36 seconds
C) 45 minutes 
D) 46 minutes 12 seconds
Solution:
Ans: (d) LCM of [252, 308, 198]

252 = 2 × 2 × 3 × 3 × 7

308 = 2 × 2 × 7 × 11

198 = 2 × 3 × 3 × 11

LCM= 2 × 2 × 3 × 3 × 7 × 11 = 2772,

2772/60=46.2 minutes

= 46 minutes & 12 seconds

Abhinav Sinha

· commented

· 1 Months ago

Dear student,
Your issue has been solved, please reattempt the question.
Keep learning,
Team TR

sunil kumar

· commented

· 1 Months ago

yeah but what would be solution when only this is given and we are needed to get the time of their first meeting?

Rahul Ahuja

· commented

· 1 Months ago

Correct
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