Question
The marks scored by Meena in English are 40% more than the
marks she scored in History. The average marks obtained by Meena in English, History, and Mathematics is 84. If she got ninety marks in Mathematics, find the marks she scored in History.Solution
ATQ,
Total marks scored by Meena in English, History, and Mathematics = 84 × 3 = 252
So, marks scored by Meena in English and History = 252 – 90 = 162
Let the marks scored in History be ‘x’.
Then, marks in English = 1.40x
So, x + 1.40x = 162
2.40x = 162
x = 162 / 2.40
x = 67.5
So, marks scored by Meena in History = 67.5 marks
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