Pure Pattern
Level
pending
Can you solve this tricky maths equation problem by replacing ? mark with correct symbol ?
19834 -----: 187 15921 -----: 153 17561 -----: 137 13734 -----: ???
The answer is 117.
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1 solution
(1+9+8=) 18 (3+4=) 7
(1+5+9=) 15 (2+1=) 3
(1+7+5=) 13 (6+1=) 7
(1+3+7=) 11 (3+4=) 7