Chairs in a hall is arranged in 35rows and 18 columns
a) how many would there be with21 chairs to a row?
b) how many chairs would there be in each row if there were 15 rows?
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Totally there are 630 chairs. each row consists if 18 chairs.
a) If there are 21 chairs in the row then total chairs are 630+18×3=684 chairs.
b) If there are 15 rows then total chairs are 15×18=270 chairs..
a) If there are 21 chairs in the row then total chairs are 630+18×3=684 chairs.
b) If there are 15 rows then total chairs are 15×18=270 chairs..
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