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GMAT Problem Solving (PS) | A string of lights is strung with red, blue, and yellow bulbs in a rat

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srikanth9502 wrote:

A string of lights is strung with red, blue, and yellow bulbs in a ratio of two to five to three, respectively. If 6 bulbs are lit in a random sequence, what is the probability that no color is lit more than twice?

A) 9/1000

B) 81/1000

C) 10/81

D) 1/3

E) 80/81

Dearsrikanth9502 ,

I'm happy to respond. Image

This is a brilliant question, a very clever variant of the standard"at least" scenario .

The only way no
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