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  1. If
    3 − 5x
    +
    3 − 5y
    +
    3 − 5z
    = 0, the value of
    2
    +
    2
    +
    2
    is
    2x2y2zxyz
    1. 20
    2. 5
    3. 10
    4. 15
Correct Option: C

3 − 5x
+
3 − 5y
+
3 − 5z
= 0
2x2y2z

⇒ 
3
5x
+
3
5y
+
3
5z
= 0
2x2x2y2y2z2z

⇒ 
3
+
3
+
3
5
5
5
= 0
2x2y2z222

⇒ 
3
+
3
+
3
=
3 × 5
2x2y2z2

⇒ 
1
+
1
+
1
=
5
2x2y2z2

⇒ 
4
+
4
+
4
=
4 × 5
2x2y2z2

⇒ 
2
+
2
+
2
= 10
xyz



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