Its adding the current number by the previous number so the next three would be 21,34,55
Answer:
Step-by-step explanation:
way_1:
according to the condition the probability for the 1st computer is 8/10=4/5;
for the 2d computer is 7/9. Then the final probability is P=4/5 * 7/9=28/45;
way_2:
the required probability can be calculated according the formula:
then
Answer:
A is your answer
Step-by-step explanation:
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