The marks obtained by A is 25% more than B, and the marks obtained by C is 155 more than the difference of the marks obtained by A and B. If C obtained 220 marks, then find the marks obtained by A.
Let the marks obtained by B be ‘x’. So, marks obtained by A = 1.25x According to question, (1.25x – x) + 155 = 220 0.25x = 220 - 155 0.25x = 65 x = 65/0.25 x = 260 Therefore, marks obtained by A = 1.25 × 260 = 325 marks
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