SSC CGL Tier II 25 Oct 2015 Paper 1

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Question : 55 of 100

Marks: +1, -0

The greatest number among

3 ^50, 4^40, 5^30

and

6^20

is

$3^50$
$4^40$
$5^30$
$6^20$

Solution:

(2)

3^{50}= (3^{5} )^{10}=(243)^{10}

4^{40}= (4^{4} )^{10}=(256)^{10}

5^{30}= (5^{3} )^{10}=(125)^{10}

6^{20}= (6^{2} )^{10}=(36)^{10}

∴ Largest number

=4^40

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