SQUARES AND SQUARE ROOTS PRACTICE WORKSHEET

Problem 1 :

1225 plants are to be planted in a garden in such a way that each row contains as many plants as the number of rows. Find the number of rows and the number of plants in each row.

Solution

Problem 2 :

Find the smallest number by which 3645 should be divided so as to get a perfect square. Also, find the square root of the number so obtained.

Solution

Problem 3 :

For each of the following numbers, find the smallest number by which we divide it so as to get a perfect square. Also find the square root of the square numbers so obtained.

a)  37845           (b) 2800             (c) 45056

Solution

Problem 4 :

The students of Class VIII of a school donated $2401 for Relief Fund. Each student donated as many dollars as the number of students in the Class. Find the number of students in the Class.

Solution

Problem 5 :

There are 500 children in a school. For a P.T. drill they have to stand in such a manner that the number of rows is equal to number of columns. How many children would be left out in this arrangement?

Solution

Answer Key

1)   number of plants in each row = 35, number of rows = 35 rows.

2)  27

3)  a)  87  b) 20   c)   64

4)  x = 49

5)  So, after standing up the students in 22 rows in which each row consists of 22 students, there must be 16 students left over.

Problem 1 :

A school collected $2304 as fees from its students. If each student paid as many dollars as there were students in the school, how many students were there in the school?

Problem 2 :

2025 plants are to be planted in a garden in such a way that each row contains as many plants as the number of rows. Find the number of rows and the number of plants in each row.

Solution

Problem 3 :

10404 students are sitting in a lecture room in such a manner that there are as many students in a row as there are rows in a lecture room. How many students are there in each row of a lecture room?

Solution

Problem 4 :

Find the smallest number by which 1800 must be multiplied so that it becomes a perfect square. Also find the square root of the perfect square so obtained.

Solution

Problem 5 :

Is 2352 a perfect square? if not, find the smallest number by which 2352 must be multiplied so that the product is a perfect square. Find the square root of new number.

Solution

Problem 6 :

The area of a square field is 8281 m2. Find the length of its side.

Solution

Answer Key

1) Number of students in the school = 48, Amount of denomination by each student = $48

2)  number of rows is 45 and number of plants in each row is also 45.

3)  In each row there are 102 students,

4)  square root of the number obtained is 60.

5)  Square root of the new number is 84.

6)  So, side length of square is 91 m.

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