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RRB Junior Engineer Stage 1 Model Papers 9
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© examsnet.com
Question : 3
Total: 100
If
9
√
x
=
√
12
+
√
147
, then x = ?
2
3
4
5
Validate
Solution:
9
√
x
=
√
3
×
2
×
2
+
√
3
×
7
×
7
=
9
√
x
=
2
√
3
+
7
√
3
=
9
√
3
x
=
3
© examsnet.com
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