Question 1205541: how many kids are in the chorus if no one is younger than 10 years old, 20 kids are 10 or younger, 8 are older than 10, and six are older than 11?
Found 2 solutions by greenestamps, ikleyn:
Answer by greenestamps(13200)   (Show Source):
You can put this solution on YOUR website!
(revised/corrected, to fix some typos....)
None younger than 10, and 20 of them 10 or younger, means there are 20 who are 10 years old.
Then 8 older than 10 makes a total of 28.
The 6 that are older than 11 have already been counted, because they are older than 10.
ANSWER: 28
Answer by ikleyn(52797)  (Show Source):
You can put this solution on YOUR website! .
how many kids are in the chorus if no one is younger than 10 years old,
20 kids are 10 or younger, 8 are older than 10, and six are older than 11?
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None younger than 10, and 20 of them 10 or younger, means there are 20 who are 10 years old.
Then 8 older than 10 makes a total of 28.
The 6 that are older than 11 have already been counted, because they are older than 10.
ANSWER: 28
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