There is certain number of rows of chairs in the room. The number of chairs in each row is thrice the total number of rows find the number of chairs in each row and number of rows in the room is the total number of chair is 2187.
pravin75:
hii
Answers
Answered by
6
Total no of row is 9
Total number of chair is 9*3=27
Total number of chair is 9*3=27
then x^3=2187/3=729. therefore x=9
now u can solve this
why have u taken 3x square
why sqaure
no of row * 3 times of no of row
u got it
but why square???
x * 3 x = 3x^2
but after that u wrote 3x^3
x * 3 x^2 A/C TO QUE
Answered by
0
27,81
Step-by-step explanation:
total chairs =2187
let the total number of rows be x
number of chairs in each row =3x
total number of chairs =3x×x
=3x^2
3x^2=2187
x^2=2187/3
x^2=729
x=square root 729
x=27
therefore,number of rows =27
number of chairs in each row =27×3=81
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