Question
The marks obtained by A is 25% more than B, and the
marks obtained by C is 120 more than the difference of the marks obtained by A and B. If C obtained 140 marks, then find the marks obtained by A.Solution
Let the marks obtained by B be ‘x’. So, marks obtained by A = 1.25x According to question, (1.25x – x) + 120 = 140 0.25x = 140 – 120 0.25x = 20 x = 20/0.25 x = 80 Therefore, marks obtained by A = 1.25 × 80 = 100 marks
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