A bag contains 20 balls marked 1 to 20. One ball is drawn at random. Find the probability that it is marked with a number multiple of 5 or 7.

1
\(\frac{3}{{10}}\)
2
\(\frac{7}{{10}}\)
3
\(\frac{1}{{11}}\)
4
\(\frac{2}{3}\)

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