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shivam_bhalla

  • 3 years ago

A simple looking tough question pertaining to number of digits. Question below

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  1. shivam_bhalla
    • 3 years ago
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    http://mypat.in/PaperImages/3/425/Q_14_014.gif

  2. 1729antony
    • 3 years ago
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    5^30=(10/2)^30=p(say) now log p =log 10^30 - log 2^30 = 30-30*.3010=20.97 so 5^30 lies between 10^20 and 10^21.. so it has 21 digits

  3. shivam_bhalla
    • 3 years ago
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    Thanks @1729antony , good work brother. Dunno where I left my brain today :P

  4. 1729antony
    • 3 years ago
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    :)

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