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The number of integral solutions of x+y+z=0 with x5,y5,z5 is 

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a
134
b
136
c
138
d
140

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detailed solution

Correct option is B

Let x1=x+5,y1=y+5,z1=z+5 and find the number of non-negative integral solutions of x1+y1+z1=15.15+3-1C3=17C3=136


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