SSC CHSL Similar 15 Nov S1 – Question 71

Question:

A student scored 25% higher marks in English than in History. If the average marks obtained in the two subjects is 90, what are his marks in History?

एक छात्र ने इतिहास की तुलना में अंग्रेजी में 25% अधिक अंक प्राप्त किए। यदि दोनों विषयों में प्राप्त औसत अंक 90 हैं, तो इतिहास में उसके अंक क्या हैं?

Options:

  • 56
  • 80
  • 64
  • 72
  • 56
  • 80
  • 64
  • 72

Correct Answer: b)

Explanation:

Let History marks = \(H\). English marks = \(1.25H\).
Total marks = \(H + 1.25H = 2.25H = 2 \times 90 = 180\).
\(H = \dfrac{180}{2.25} = 80\).

माना इतिहास में अंक = \(H\), अंग्रेजी = \(1.25H\)।
कुल अंक = \(2.25H = 180 \implies H = 80\)।

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