Question-63790

Question Number 63790 by rajesh4661kumar@gamil.com last updated on 09/Jul/19

Answered by Hope last updated on 10/Jul/19

a + b = 6 k

b + c = 7 k

c + a = 8 k

a d d t h e m

2 (a + b + c) = 21 k

a + b + c = \frac{21 k}{2}

a = \frac{21 k}{2} - 7 k = \frac{7 k}{2}

b = \frac{21 k}{2} - 8 k = \frac{5 k}{2}

c = \frac{21 k}{2} - 6 k = \frac{9 k}{2}

a : b : c = \frac{7 k}{2} : \frac{5 k}{2} : \frac{9 k}{2} = 7 : 5 : 9

Answered by Hope last updated on 10/Jul/19

10^{n} - 1 = 4707

10^{n} = 4708 =

n = {l o g}_{10} 4708

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