IPS Verbal reasoning iam stuck

[senthi]

IPS book2 daily practice ,test 17 Q:3

(12[36]6) (8[44]14)


(15[ ]11)

THE ANSWER IS 52

can anyone could explain the work out please.thankyou.

[mitasol]

double both sides and add together

(12[36]6)
double 12 + double 6 etc.

[senthi]

thank you mitasol

[patricia]

Or add the 2 outside numbers and then double.

12 plus 6 = 18
18 x 2 = 36

Patricia