Question
The marks obtained by A is 25% more than B, and the
marks obtained by C is 122 more than the difference of the marks obtained by A and B. If C obtained 200 marks, then find the marks obtained by A.Solution
Let the marks obtained by B be āxā. So, marks obtained by A = 1.25x According to question, (1.25x ā x) + 122 = 200 0.25x = 200 - 122 0.25x = 78 x = 78/0.25 x = 312 Therefore, marks obtained by A = 1.25 Ć 312 = 390 marks
How is B related to C?
I. C and D are the sons of E. B is son of Eās father.
II. E is sister of B and mother of D, who is brother of C.
How is R related to O?
I. O is wife of E. O and K are the only children of T. I is the only daughter of E. R is the grand-daughter of T.
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