Question
Statements: Â Y $ Z, H $ D, Z * D Conclusions:
    a) Y & H                              b) Y * D In the following questions, the symbols @, #, %, $ and * are used with the following meaning as illustrated below. A * B means A is either equal to or greater than B. A $ B means A is equal to B. A # B means A is either equal to or smaller than B. A & B means A is smaller than B. A @ B means A is greater than B.Solution
Given statements: Y $ Z, H $ D, Z * D After converting: Y = Z, H = D, Z ≥ D After combining: Y = Z ≥ D = H Conclusion a → Y & H → Y < H The relation between Y and H in the statement Y = Z ≥ D = H : Y < H So, it is not true. Conclusion b → Y ⋆ D → Y ≥ D The relation between Y and D in the statement Y = Z ≥ D = H : Y ≥ D. So, it is true.
(24% of 500 - 20) ÷ 25 = ? ÷ 4
If a³ - b³ = (a - b)(a² + ab + b²), find a³ - b³ when a = 10 and b = 4.
(22.5 × 24) ÷ 40 + 51.50 = ? ÷ 5.25
12.5% of 384 - 16.66% of 66 = √16 + √? + 22
44% of 1900 + 25% of ? = 9000
52% of 36% of 810 = 72% of 18% of ?Â
25% of 250 + 32% of 200 = ? ÷ √ 16
1240 ÷ ? = 242 + 123 – 514 × 4
14 × 6 + 9 × 11 = (82 – 3) × ?
What will come in the place of question mark (?) in the given expression?
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