Question

please friends plz answer for this question ​

Answer 1

Answer:

x+4.y-2=xy

x-4.y+4=xy

from 1and 2

-2x+4y=8

4x-4y=16

then

2x=24

x=24/2

x=12

y=4(12)-4y=16

-4y=16-48

-4y =-32

y=-32/-4

y=8

total students=xy=12*8=96

Answer 2

Answer:

HEY MATE HERE IS YOUR ANSWER :

NUMBER OF STUDENTS IN CLASS : 96

Step-by-step explanation:

let x = no. of students in row

let y = number of rows

then, no. of students = xy

according to 1st condition,

:. (x–2)×(y + 4) = xy

while solving this, we get

:. 2x –y = 4 ---(1) equation

according to 2nd condition,

:. (x +4)×(y – 4) = xy

while solving this,we get

:. –x + y = 4 ---(2) equation

By adding equation (1) & (2), we get

x = 8 rows

put the value of x = 8 in equation (2)

:. y = 4 + 8

:. y = 12 students in a row

:. no. of students = xy

:. no. of students = 8 × 12

:. no. of students = 96 students

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