Mathematical Operations Reasoning Material for All Competitive Exams | PDF Download

Mathematical Operations Reasoning Material for All Competitive Exams | PDF Download

This section deals with questions on simple mathematical operations. Here, the four fundamental operations – addition, subtraction, multiplication and division and also statements such as ‘less than’, ‘greater than’, ‘equal to’, ‘not equal to’ etc. are represented by symbols different from the usual ones. The questions involving these operations are set using artificial symbols. The candidate has to substitute the real signs and solve the questions accordingly, to get the answer.

Example – If + means – , – means x , – means + , and x means – , then 48 + 12 – 15 x 2 – 5= ?

(1) 8    (2) 18    (3) 9 (4) 3       (5) None of these

Ans: Putting the proper signs in the given expression, we get 48 – 12 + 15 – 2 x 5 = 4 + 15 – 10 = 9 Hence the answer is (3)

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