7. There is a circular path around a sports field.
Asha and Anu were two friends decided to
drive rounds of that circular field. Asha takes
18 minutes to drive one round of the field while
Anu takes 2 minutes for the same. Suppose they
both started at the same point and at the same
direction and at same time.
Now, answer the following questions :
Among bcth, who takes less time to cover the
circular path and by how much ?
(i) Anu, 4 min
(ii) Asha, 4 min
(iii) Anu, 6 min
(iv) Asha, 6 min
After how many minutes they meet at the start-
ing point ?
(i) 30 min (ii) 32 min
ti) 34 mined w(iv) 36 min
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huh
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Answered by
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Answer:
The time of their meeting is the LCM of 18 and 12 in minutes.
The time of their meeting is the LCM of 18 and 12 in minutes.Prime factorisation of 18=2×3×3
The time of their meeting is the LCM of 18 and 12 in minutes.Prime factorisation of 18=2×3×3Prime factorisation of 12=2×2×3
The time of their meeting is the LCM of 18 and 12 in minutes.Prime factorisation of 18=2×3×3Prime factorisation of 12=2×2×3Hence, LCM of 18,12=2×3×3×2=36
The time of their meeting is the LCM of 18 and 12 in minutes.Prime factorisation of 18=2×3×3Prime factorisation of 12=2×2×3Hence, LCM of 18,12=2×3×3×2=36Sonia and Ravi meet after 36 minuets...
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