Problem on Conditional Probability- Calc the survival rate of three people A B C

The Probability that at least 2 out of 3 people A B C will survive for 10 years is 247/315. The probability that a alone will survive for 1 years is 4/15 and the probability that C alone will die within 10 years is 2/21 The survivals of A B C are independent events. Calculate the probability of survival of each person for 10 years.

[ Hint in the answer section it is given as : 3/5, 5/7, 7/9 ]