11. perfect cube? 7056 people were sitting in a hall in such a manner that there were as many people in the row as there were rows in the hall. How many people were there in each row of the hall?
plz answer in detail
Answers
Step-by-step explanation:
PEOPLE SITTING IN ONE ROW = NO. OF ROWS, SO THEY ARE MAKING A SQUARE.
7056 IS NOT A PERFECT CUBE.
SQRT OF 7056 = 84
PEOPLE SITING IN A ROW = 84
NO. OF ROWS = 84
VERIFICATION:
84×84 = 7056 = NO.OF PEOPLES IN A ROW.
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Given data:
7056 people were sitting in a hall in such a manner that there were as many people in the row as there were rows in the hall
To find:
The number of people in each row of the hall
Step-by-step explanation:
From the given condition, we can conclude
The number of people in each row × the total number of rows in the hall = the total number of people in the hall
⇒ (the number of people in each row)² = 7056, since there were as many people in the row as there were rows in the hall
⇒ (the number of people in each row)² = (84)²
⇒ the number of people in each row = 84
Answer:
There were 84 people in each row of the hall.
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