The smallest integer n for which 4n > 1719 holds, is closest to
Explanation:
We have, 4n > 1719
Taking log on both sides to the base 4, n × log4 4 > 19 × log4 17
Now, 17 > 42.
∴ log4 17 > 2.
⇒ n × log4 4 > 19 × log4 17 > 19 × 2
Also, log4 4 = 1
∴ n > 38.
Hence, option (c).
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