The probability that Adam will go see the latest hit movie in the local theater tonight if Bob goes is equal to 0.3. The probability that Cindy will go if Bob goes is the same as the probability that Cindy will go if both Adam and Bob go. The probability that all three will go is strictly positive. What is the probability that Adam will go if both Bob and Cindy go and why?

Please help with this stats and probability question ASAP!!