Question

two identical RED and GREEN balls are placed in a box and a blind folded person pick one ball. the colour of new ball is noted,the drawn ball is replaced in the box and the blind folded person repeats this exercise several times.the following are the results in terms of occurrence of RED(R) or GREEN(G) balls in four successive rounds .
1. RGGR
2.RRRR
3.GGGG
4.CGRG

Based on the given information what is the probability that the ball drawn in the fifth round is RED(R) ?
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Answer 1

Answer:

i think 2nd option is correct