log10 50 =log101002 (0.25 Mark) =log10 102−log10 2 (0.25 Mark) =2 log10 10−log10 2 (0.25 Mark) =2(1)−log10 2 (0.25 Mark)
=2−0.30103=1.69897 (1 Mark)
If log10 2=0.30103, then log10 50=