Question

please give me ans for class 9th please​

Answer 1

Answer:

Let no. of lion be x and no. of pecockbe y.

According to First Condition

x+y=50---|

According to Second Condition

4x+2y=140---||

multiply eqn | by ||

2x+2y=100---|||

Now subtract eqn || from |||

4x+2y=140

-(2x+2y=100

2x =40

x=20

lion =20

Put x=20 in eqn |

x+y=50

20+y=50

y=30

pecock =30