Q126 of 142 Page 88

8649 students were sitting in a lecture room in such a manner that there were as many students in the row as there were rows in the lecture room. How many students were there in each row of the lecture room?

Given:

Let the number of students in each row = y


number of students in a row = the number of rows = y


Hence, total students = y × y


Acc. To given condition:


Y2 = 8649


⇒ y2 = 93 × 93


⇒ y2 = 932


⇒ y = 93


Hence, the number of students in each row = 93


More from this chapter

All 142 →
124

A hall has a capacity of 2704 seats. If the number of rows is equal to the number of seats in each row, then find the number of seats in each row.

 125

A General wish to draw up his 7500 soldiers in the form of a square. After arranging, he found out that some of them are left out. How many soldiers were left out?

 127

Rahul walks 12 m north from his house and turns west to walk 35 m to reach his friend’s house. While returning, he walks diagonally from his friend’s house to reach back to his house. What distance did he walk while returning?

 128

A 5.5 m long ladder is leaned against a wall. The ladder reaches the wall to a height of 4.4 m. Find the distance between the wall and the foot of the ladder.