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Srinath

· started a discussion

· 1 Months ago

LCM of this times gives meeting point at starting point ..but we need to find thier first meeting point as per the question

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

ABHII

· commented

· 1 Months ago

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

vvr

· commented

· 1 Months ago

Then what would be the answer?

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