Question
Statements: C $ O, O% D, A © D
Conclusions: I. A © O II. D @ C III. C © A In the following questions, the symbols @, #, %, $ and © are used with the following meaning as illustrated below- ‘A # B’ means ‘A is neither greater than nor equal to B’  ‘A © B’ means ‘A is neither equal to nor smaller than B’  ‘A % B’ means ‘A is neither smaller than nor greater than B’  ‘A $ B’ means ‘A is not smaller than B’  ‘A @ B’ means ‘A is not greater than B’ÂSolution
Decoded Statement: C ≥ O, O = D, A > D Decoded conclusion: O. A > O                   II. D ≤ C                                III. C > A C ≥ O = D < A                   A > O. Hence conclusion I is true. C ≥ O = D < A                     C ≥ D. Hence conclusion II is true. C ≥ O = D < A                     No relationship can be established between C and A. Hence conclusion III is not true.
60 % of 640 - 57 × 2 - 1520 / 38 = ?
(21 × 51 + 81)/(9 × 14 - 30) = ?
31% of 1900 - ? = 73
(5/8 of 480 - 30% of 420)² ÷ (√81 + 25% of 320) = ?
16 × 35 + 119 + 23 × 17 = ? + 370
522 + 160% of 80 - 130 = ? X 13Â
70 % of 640 + 75 % of 360 - 19 × 12 = ?
(5832)1/3  × 10.11 × 11.97 ÷ 16.32 = ? + 45.022