Tricky Maths Eqaution Problem

Tricky Maths Eqaution Problem Solution - 4 March

Can you solve this tricky maths equation problem by replacing ? mark with correct symbol ?

19834 -----: 187
15921 -----: 153
17561 -----: 137
13734 -----: ???


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Solution
117

1+3+4,3+4