Question

11^n-8-5=54

Answer 1

11^n – 8-5 = 54
11^n – 13 = 54
11^n = 54+13
11^n = 67
take log on both side of the equation.
Log(11^n ) = log 67
n log 11 = log 67
n = log67/ log11
n = 1.826/1.041
n = 1.754

ICSE guess papers - http://icse.edurite.com/icse-sample-papers.html