Question Number 174983 by MikeH last updated on 15/Aug/22
Commented by Rasheed.Sindhi last updated on 15/Aug/22
$$\mathrm{F}.\:\mathrm{15} \\ $$$$\mathrm{Only}\:\mathrm{15}'\mathrm{s}\:\mathrm{integral}\:\mathrm{product}\:\mathrm{don}'\mathrm{t}\:\mathrm{fall}\: \\ $$$$\mathrm{between}\:\mathrm{137}\:\&\:\mathrm{149} \\ $$$$\mathrm{15}×\mathrm{9}=\mathrm{135}<\mathrm{137} \\ $$$$\mathrm{15}×\mathrm{10}=\mathrm{150}>\mathrm{149} \\ $$
Commented by MikeH last updated on 15/Aug/22
$$\mathrm{thank}\:\mathrm{you}\:\mathrm{sir}.\: \\ $$
Commented by kaivan.ahmadi last updated on 16/Aug/22
$${thank}\:{you}\:{sir} \\ $$