Answer Posted / pallab datta

One operator is missing in this expression. There are six operands ( 2, 6, 1, 3, 2, 4 ) and four operators ( + , + , + , - ). The number of operators must be exactly 1 less than the number of operands to be a proper expression. Here the number of operator is 2 less than the number of operands. Hence evaluation of this expression is not possible.

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