During a mass drill exercise, 6250 students of different schools are arranged in rows such that the number of students in each row is equal to the number of rows. In doing so, the instructor finds out that 9 children are left out. Find the number of children in each row of the square.
Solution:
Given, the total number of students of different schools during a mass drill exercise are arranged in rows such that the number of students in each row is equal to the number of rows.
The instructor finds out that 9 children are left out.
We have to find the number of children in each row of the square.
Number of students in each row = number of rows
This implies the students are arranged in the shape of a square.
Number of students arranged in square form = 6250 - 9 = 6241
We know, area of square = side²
So, side² = 6241
Taking square root,
Side = √6241
Side = 79 m
Therefore, 79 students are arranged in each row of a square.
✦ Try This: During a mass drill exercise, 536 students of different schools are arranged in rows such that the number of students in each row is equal to the number of rows. In doing so, the instructor finds out that 7 children are left out. Find the number of children in each row of the square.
☛ Also Check: NCERT Solutions for Class 8 Maths
NCERT Exemplar Class 8 Maths Chapter 3 Sample Problem 31
During a mass drill exercise, 6250 students of different schools are arranged in rows such that the number of students in each row is equal to the number of rows. In doing so, the instructor finds out that 9 children are left out. Find the number of children in each row of the square.
Summary:
During a mass drill exercise, 6250 students of different schools are arranged in rows such that the number of students in each row is equal to the number of rows. In doing so, the instructor finds out that 9 children are left out. The number of children in each row of the square is 79
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