Question

plz give me answers this question​

Answer 1

Answer:

Option B is the answer of your question.

Step-by-step explanation:

x is opposite to 4. Therefore, x=7-4 =3.

y is opposite to 2, Therefore, y=7-2=5.

z is opposite to 6, Therefore, z=7-6=1.

Note: Sum of the digits present in the opposite sides of the cube is always 7. The problem is solved using this method only.

Now,

xy + yz -2zx

=(3*5) + (5*1) - 2*(1*3)

=15+5-6

=20-6

=14.

Therefore, the answer is 14. i.e. Option B

I hope this will help you. Please mark this answer as the brainliest.

Answer 2

we know that ;

sum of opposite sides of a die = 7

therefore , from the figure ;

x + 4 = 7

=> x = 3 (1)

and , z + 6 = 7

=> z = 1 (2)

also , y + 2 = 7

=> y = 5  (3)

a/q ;

(x *y ) + (y * z ) - 2 ( z * x ) = ( 3 * 5 ) + (5 *1 ) - 2 (1*3 ) [ from 1 , 2 , 3 ]

                                         = 15 + 5 - 6

                                          = 14

correct option is (B)

HOPE THIS HELPS YOU

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