If 11 plus 72 equals 15,22 plus 66 equals 40,then what is 35 plus 52?

Question

Explain step by step.Fast as possible.This is a question that I study for a scholarship.It would be very helpul

Answer 1

11+ 72 = 55 In the decimal system it would = 83

22+66 = 40 In the decimal system = 88

35+52 = ? in the decimal system = 87 which is very close to 88, 5 times closer than to 83. 1 versus 5. So maybe 35+52 in whatever system is used would be 5 times closer to 40 than to 55. 43 is 5 times closer to 40 than to 55. 3 versus 15

Maybe go with 35+52 = 43