Exam Maths Puzzle Logical Reasoning

105:150::18:?

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Exam Other Question

5+3+2=151022
9+2+4=183652
8+6+3=482466
5+4+5=202541 then
7+2+5=?
A,B,C,D started business with investments in ratio 3:4:5:6.As B &C were working partners they are paid equal salaries.the ratio of B's & C's total annual income is 9:10.If the total amount of profit is 84000, the find B's salary?