Question

which of these is larger: log8 62 or log7 50

Answer 1

\[\log_{a}(b) = \log(b)/\log(a)\]
applying this logic to your problem

log8 (62) = log(62) / log(8)
log7 (50) = log(50)/ log(7)

plug these into a calculator and see which one ends up the larger result