Question

1 1
x + y + z = 12, x2 + y2 + z2 = 96,-+-+-= 36 then the value of x + y + z will be equal to
х у 2
(A) 372
(B) 644
(C) 756
(D) 866 (E) 865

Answer 1

Answer:

Step-by-step explanation:

Let, x=1.3  

23

.

Then, 10x=13.  

23

(1)

                =13.23  

23

 

and 1000x=1323.  

23

(2)

Now, subtracting  (1) from (2) we get,

990x=1310

⇒x=  

990

1310

​

=  

99

131

​

 

Which is the required  

q

p

​

form