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For a school play, the teacher asked the class to set up chairs in 20 rows with 25 chairs in each row. After setting up all the chairs, they were 5 chairs short. how many chairs did the class set up? Show your work.

Sagot :

Fayebiersackidn
20*25= 500 
that is how many there should be
500-5=495 
that is how many they set up

Answer:

495 chairs were set up.

Step-by-step explanation:

If a teacher asked the class to arrange C chairs in R rows then total number of chairs will be = C × R

If there are are 5 chairs short in the class set then number of chairs used

= (C × R) - 5

Now it has been given that number of chairs and number of rows are 25 and 20 then the chairs used will be

= (25 × 20) - 5

= 500 - 5

= 495

Therefore, 495 chairs were used in the class set up.

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