Question Number 56524 by Sr@2004 last updated on 18/Mar/19
Commented by Sr@2004 last updated on 18/Mar/19
$${please}\:{solve}\:\mathrm{13}\:{and}\mathrm{15} \\ $$
Commented by tanmay.chaudhury50@gmail.com last updated on 18/Mar/19
$${pls}\:{check}\:{question}\:{no}\:\mathrm{13}\:{and}\:\mathrm{14}\:{already}\:{solved}. \\ $$