The question says should only take 10 seconds.
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3 Answers

??????????? is that junk spozed tu be...

(2/3)*(3/4)*(4/5) *(5/6)*....*(9/10) ??????????????????

if so, the 3's kansel, 4's kansel, 5's kansel....thru 9's

yer left with (2/10)=0.2

=20%
by

(2/3)x(3/4)x...x(9/10)

both 3s above cancel, so do the 4s, and 5s, and 6s all the way up to 9s.

Then you are left with 2/10 which will be the answer.

by Level 9 User (42.0k points)
drinks all around!
by Level 2 User (1.3k points)

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