Practice Test Discussion

Q)

 

898×(12.005)2+? = 5000

[RBI Grade B, 2009]


  • Explanation

    Given,

    898×(12.005)2+? = 5000

    It can also be approximated as

    900×(12)2+?=5000

    = 30×144+?=5000

    = 4320+?=5000

    = 5000-4320

    = 680

    Hence, Option A is correct.

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