Welcome To Sbtetresults.com and Check Your Diploma Results From Below Links

FB PAGE Answer @SBTET WORLD

SBTET WORLD FB PAGE QUESTION LINK CLICK HERE

Above links Answer is 27

Method: 1
x+y=10... .1
x+z=20.... 2
y+z=24... .3
(1)+(2)+(3) =2x+2y+2z=10+20+24..... 4
2x+2y+2z=54
divide throughout by 2 to get
x+y+z=27

Method:2
Cat=C, Dog=D, Rabbit=R

Given that,
R+C=10
D+R=20
C+D=24
so
2R+C+D=30
2R=30-(C+D)
but
C+D=24
so
2R=30-24=6
R=6/2=3
so
C=10-3=7
D=20-3=17
R+C+D=3+7+17=27

Method: 3
X= rabbit; y= cat; z= dog.
X+y =10;
X+z = 20;
y+z = 24;
X+y+z =?
The equations can be written:
X= 10- y;
z= 20-X= 10+y;
y+z =24;
y+10+y= 24
y = 7 cat
X= 3 rabbit
z= 17 dog
So,
X+y+z = 27 kg.

Post a comment

0 Comments