Latest Capgemini Aptitude Question SOLUTION: if x-y + z = 19 , y + z =20 , x-z=3 , find d value of x+4y-5z

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(#M40011213) CAPGEMINI Numerical Ability question Keep an EYE

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

Asked In Capgemini madhan (11 years ago)

Unsolved Read Solution (8)

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Burn Mihailov  (11 years ago)

ANS: -13

adding all, we get: 2x+z=42 and solving it with x-z=3, we get x=15, z=12 and y=8
x+4y-5z = 15+32-60 = 47-60 = -13

Is this solution Helpfull? Yes (28) | No (1)  

Karthik Narasimhan  (11 years ago)

substitute y-z=20 in the 1st equation...i got x=15
subs x=15 in 3rd equation...z=12
subs x=15 and z=12 in 1st equation....y=8
subs in question...i got ans=-13

Is this solution Helpfull? Yes (7) | No (5)  

balu  (11 years ago)

given x-y+z=19,y+z=20 add these two equations we get x+2z=39 and another equation given x-z=3 solve this equation and x+2z=39 we get x=15,put x=15 in x-z=3 get z=12
put x=15 and z=12 in first equation we get y=8 so x+4y-5z=15+4(8)-5(12)
15+32-60=-13 so -13 is answer

Is this solution Helpfull? Yes (4) | No   

Burn Mihailov  (11 years ago)

ANS: 3

adding all, we get: 2x+z=42 and solving it with x-z=3, we get x=15, z=12 and y=8
x+4y-5z=15+48-60=3

Is this solution Helpfull? Yes (2) | No (10)  

Mr.!NnOcEnT  (11 years ago)

Ans : -13
Hint : Solve 3 equations will get x=15,y=8,z=12

Is this solution Helpfull? Yes (2) | No (1)  

Vipul Anand  (10 years ago)

adding eqn 2 and 3 we get x+y=23,add 1 and 3 we get 2x-y=22 add the two and you get x=15 y=-8 and z=12 and the final value is -77

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snehasish samanta  (11 years ago)

ans: -13....

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akshay  (7 years ago)

judt put the value ans is -13

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