In a mock test conducted by a coaching institute
In a mock test conducted by a coaching institute, 20 students average scored 75% marks and the remaining 15 students average scored 54% marks. Find the average score.
एक कोचिंग संस्थान द्वारा आयोजित मॉक टेस्ट में, 20 छात्रों ने औसतन 75% अंक प्राप्त किए और 15 छात्रों ने औसतन 54% अंक प्राप्त किए। सभी छात्रों के औसत अंक ज्ञात कीजिए ?
Detailed Solution & Logic
66%
Number of students} = 20 + 15 = 35
Total marks of first 20 students = $ 20 \times 75 = 1500 $
Total marks of remaining 15 students = $ 15 \times 54 = 810 $
Total marks of all students = 1500 + 810 = 2310
Average score = $ \frac{2310}{35} = 66 $
Answer: 66%
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