if x-y+z=19,y+z=20,x-z=3,find d value of x+4y-5z

• x-y+z=19 -----eqn1 y+z=20-----eqn2 x-z=3-------eqn3
  Now substract eqn 2 from eqn3,we will get x-y-2z=-17-------eqn4.
  Now substract eq4 and eqn1, we get,
  z=12.
  
  Using z=12 in eqn2,we get- y=8
  Using z=12 in eqn3,we get- x=15
  
  Put values in x+4y-5z=15+32-60=-13.
  
  SO ans is -13.
  
  
• 8 years agoHelpfull: Yes(27) No(4)
• x-z=3
  x=3+z,y+z=20,y=20-z
  substitute this equation in x-y+z=19,ten we get z=12,x=15&y=8.finally we have to find x+4y-5z.then substitute x,y,z values in the above equation then we get -13.
• 8 years agoHelpfull: Yes(9) No(3)
• x-y+z=19---------(1)
  y+z=20
  thus y=20-z---------(2)
  x-z=3
  thus x =3+z---------(3)
  substitute x and y in equation (1)
  you will get,
  (3+z) - (20-z) + z = 19
  3z = 36
  z = 12
  substitute z in (2) and (3)
  thus x = 15
  and y = 8
  substitute value of x,y,z in x+4y-5z
  answer is - 13
• 7 years agoHelpfull: Yes(5) No(0)
• x=3+z, y=20-z
  substitute in eq: x-y+z=19 then find z=12
  from this x=15 and y= 6 , put this value in x+4y-5z that gives -21
  ANS IS -21
• 8 years agoHelpfull: Yes(1) No(12)
• y+z= 20 & x-z =3 on solving y+x =23
  x-y+z =19 & y+x= 23 on solving 2x+z =23
  x-z =3 & 2x+z =23 on solving x= 13 y =10
  z =10
  So x+4y-5z =3
• 7 years agoHelpfull: Yes(1) No(0)
• x-y+z=19---------->eq1
  y+z=20------------->eq2
  x-z=3---------------->eq3
  
  
  we know the value of y+z=20
  then
  subtitute in eq1
  x-y+z=19
  x-20=19
  x=19+20
  x=39------------------------------------------------------------------------------------->1
  
  now ew know the value of x=39
  then
  substitute in eq3
  x-z=3
  39-z=3
  39-3=z
  z=36------------------------------------------------------------------------------------>2
  
  now we know the values of x and z
  now substitute the x and z values in eq1
  x-y+z=19
  39-y+36=19
  add 39 and 36
  75-y=19
  75-19=y
  y=56----------------------------------------------------->3
  now got the values of x,y and z
  x=39
  y=56
  z=36
  now given x+4y-5z
  39+4(56)-5(36)
  39+224-180
  39+44
  83
• 7 years agoHelpfull: Yes(1) No(10)
• x-z=3,x-y+z=19,y+z=20
  substitute y+z value in x-y+z=19 we getx=39,y=-16,z=36
  so value is -43
• 8 years agoHelpfull: Yes(0) No(12)
• x-(20)=19
  x=39
  
  39-z=3
  z=39-3
  z=36
  
  y+36=20
  y=-16
  
  ans:
  x+4y-5z=155
• 8 years agoHelpfull: Yes(0) No(6)
• y+z=20 =>y=20-z
  x-(20-z)+z=19 => x+2z= 39 subtracting from x-z =3
  we get
  => z=12 and y=8 and x= 15 using in equation
  ans is -13
• 7 years agoHelpfull: Yes(0) No(1)
• from given,
  
  y=20-z
  x=3+z
  
  3+z-20+z+z=19
  
  on solving , z=11
  x=14
  y=17
  
  14+4(9)-5(11)=-5
• 7 years agoHelpfull: Yes(0) No(3)
• x-y+z=19-----(1)
  y+z=20,=>y=20-z--(2)
  x-z=3,=>x=3+z--(3)
  substitute eq (3),(2) in(1)
  then we get z=12;x=15;y=8
  then substitute the values of x,y,z in x+4y-5z
  th ans is -13
• 7 years agoHelpfull: Yes(0) No(0)
• x-y+z=19
  y=20-z
  x=3+z
  so
  3+z-(20-z)+z=19
  3z-17=19
  3z=36
  z=12
  y+12=20
  y=8
  x-12=3
  x=15
  15+4*8-5*12=-13
• 7 years agoHelpfull: Yes(0) No(0)
• x-y+z=19
  y+z=20
  --------------------
  x+2z=39
  
  x+2z=39
  x-z=3
  -------------------
  3z=36
  z=12----**
  
  now x-z=3
  z=12
  so, x=15---**
  
  x-y+z=19
  15-y+12=19
  so y=8---**
  
  now we know x=15
  y=8
  z=12
  putting the values we will get the answer as [-13]
• 7 years agoHelpfull: Yes(0) No(0)
• Substitute y+z in equ1 then get X value 39 and X value substitute in equ3 then get z value 36 then z value substitute in equ2 get y value -16 then get -205
• 7 years agoHelpfull: Yes(0) No(1)
• y=20-z.
  x-20+z+z=19,x-20+2z=19,x-2z=19+20,
  x-2z=39.so
  z=-36
  y-36=20,y=56.
  x+36=3
  x=-33
  so
  -33+4*56-39*5
  -33+224-180
  Ans 11
• 7 years agoHelpfull: Yes(0) No(0)
• 15+32-60=-13
• 7 years agoHelpfull: Yes(0) No(0)
• hello, are questions repeated in capgemini written test and can you share the questions pls, i have to crack the first round.
  sunilmalviya23061996@gmail.com
• 6 years agoHelpfull: Yes(0) No(1)
• x-y+z=19
  x-20=19
  x=39
  x-z=3
  39-z=3
  z=39-3
  z=36
  y=56
  x+4y-5z=83
• 6 years agoHelpfull: Yes(0) No(1)
• Can any one send the Capgemini previous papers with solutions plz to this mail divyakanthi.v@gmail.com
• 6 years agoHelpfull: Yes(0) No(0)