Question Number 107272 by mathocean1 last updated on 09/Aug/20
Answered by Dwaipayan Shikari last updated on 09/Aug/20
$$\left(\mathrm{3}+\mathrm{8}\right).\mathrm{4} \\ $$$$\left(\mathrm{9}+\mathrm{7}\right).\mathrm{2} \\ $$$$\left(\mathrm{8}+\mathrm{7}\right).\mathrm{5} \\ $$$$\mathrm{Answer}\:\mathrm{is}\:\mathrm{5} \\ $$