RRB NTPC Mains or Stage 2 Model Paper 1 with solutions

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Question : 30 of 120

Marks: +1, -0

Simplify %

√2.25

1.5
15
1.6
$2 /3$

Solution:

(1)

(2.25)^{1/2}=[225/100]^{1/2}

=[15^2/10^2]^{1/2}=[15/10]^{2×{1/2}}

=15/10=1.5

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