You have a flashlight that takes 2 working batteries. You have 8 batte

1.	You have a flashlight that takes 2 working batteries. You have 8 batteries but only 4 of them work. What is the fewest number of pairs you need to test to guarantee you can get the flashlight on?
Answer» Three pairs, because there are only 4 defective batteries. If we take 3 pairs, we can assure that ATLEAST one pair will be properly FUNCTIONAL out of the other TWO (considering the worst CASE). . . . Happy to help :) LOVE Yourself Stan BTS

You have a flashlight that takes 2 working batteries. You have 8 batteries but only 4 of them work. What is the fewest number of pairs you need to test to guarantee you can get the flashlight on?

Answer»

Three pairs, because there are only 4 defective batteries. If we take 3 pairs, we can assure that ATLEAST one pair will be properly FUNCTIONAL out of the other TWO (considering the worst CASE).

Happy to help :)

LOVE Yourself

Stan BTS

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You have a flashlight that takes 2 working batteries. You have 8 batteries but only 4 of them work. What is the fewest number of pairs you need to test to guarantee you can get the flashlight on?​

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You have a flashlight that takes 2 working batteries. You have 8 batteries but only 4 of them work. What is the fewest number of pairs you need to test to guarantee you can get the flashlight on?