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.
Find the area of triangle having sides in the ratio 4:5:7 & the perimeter of the triangle is 16 cm
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Two chords AB and CD intersect each other at point 'P' (inside the circle) . If CP = 12 cm, DP = 15 cm and AP = 20 cm, then find BP.
If O is circumcentre of acute angled triangle ABC, if ∠ BAC = 40 ˚ then ∠BOC = ?
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The volume (in cu.cm.) of a right circular cylinder with radius 1 cm and height 2 cm on is: (Take π = 22/7)
In ΔABC, D is a point on BC such that AD bisects ∠A. If BD = 6 cm, DC = 9 cm, find AB/AC.
AC and CE are the medians of triangle ABD and ACD respectively. If area of triangle ACE is 15 cm 2 , then find the area of triangle ABD.
∆ABC and ∆DEF are similar and their areas are respectively 121 cm2 and 144 cm 2 . If EF = 24 cm BC is?
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