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In a game of Archery, each ring of the A...

In a game of Archery, each ring of the Archery target is valued. The centremost ring is worth 10 points and rest of the rings are allotted points 9 to 1 in sequential order moving outwards.
Archer A is likely to earn 10 points with a probability of 0.8 and Archer B is likely the earn 10 points with a probability of 0.9.

Based on the above information, answer the following questions :
If both of them hit the Archery target, then find the probability that
both of them earn 10 points.

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