Question

In a group peacocks and deer having 260 legs and 100 heads find out how many peacocks and deers

Answer 1

Step-by-step explanation:

let the no. of peacocks be x

let the no. of deer be y

ATQ..

2x+4y=260 ......equation 1

ATQ..

x+y= 100...... equation 2

multiply equation 2 by 2

2x+2y=200..... equation3

sub. equation 3 from 1

2x+4y=260

-2x-2y= -200

____________

0+2y= 60

y=60÷2

y=30

put y =30 in equation 1

2x+4×30=260

2x+120=260

2x=260-120

2x=140

x=70