SSC CHSL 6 Dec 2015 Shift 2 Paper

For the two digits of the two digit numbers, the pattern followed is : $\left(\mathit{a}\mathit{b}\times \mathit{c}\mathit{d}\right)=\left(\mathit{a}\times \mathit{b}\right)+\left(\mathit{c}\times \mathit{d}\right)$
Eg :- 72 × 19 = (7 × 2) + (1 × 9) = 14 + 9 = 23
and 13 × 48 = (1 × 3) + (4 × 8) = 3 + 32 = 35
Similarly, 39 × 22 = (3 × 9) + (2 × 2) = 27 + 4 = 31