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Nikhil Manohar

· started a discussion

· 1 Months ago

solution???????????? (Question: 300371.0 )

u provide the solution

Question:

If xy + x + y = 250, xz + x + z = 300, yz + y + z = 216, find the value of x + y + z?

Options:
A)

50.25

B)

40.5

C)

45.25

D)

48.25

Solution:

Ans: (c)

  

Anil Singh

· commented

· 1 Months ago

@sohil the solution u posted is for another similar ques ,, but here after adding 1 we get all three prime numbers solving for prime numbers is a quite cumbersome task

Nikhil Manohar

· commented

· 1 Months ago

@Sohil Rajput ,,,, not satisfactory

Nikhil Manohar

· commented

· 1 Months ago

Thank u Sohil. Thank u very much

Sohil Rajput

· commented

· 1 Months ago

xy + x + y = 23
xy+x+y+1=24
(x+1)(y+1)=24..........................1
xz + x + z = 41
xz + x + z + 1 = 42
(x+1)(z+1) = 42..............2
yz + y + z +1 = 28
(y+1)(z+1) = 28...................3
from 1, 2 & 3 ony x=5,y=3 and z=6 satisfy the given equations therefore
x + y + z=14
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