Discussion

Explanation:

When the simplified ratio of speed of two people running around a circle is a : b 

No. of distinct meeting points when they run in:

(i) same direction = |a - b|

(ii) opposite direction = a + b

Here, simplified ratio of speeds in the given question = 16 : 20 = 4 : 5.

∴ x = 1 and y = 9    

Hence, 10.

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