Hector has a bag that contains 12 counters. There are 7 green counters and 5 red counters in the bag. Hector takes at random a counter from the bag. He looks at the counter and puts the counter back into the bag. Hector then takes at random a second counter from the bag. He looks at the counter and puts the counter back into the bag. Work out the probability that both counters are red. .................................................. (2)

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