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%
Similar Practice Questions
The average of 20 numbers is 32. If two numbers are 29 and 31, then what
The average of 20 numbers is 32. If two numbers are 29 and 31, then...
The average monthly expenditure of a family was ₹8,600
The average monthly expenditure of a family was ₹8,600 during the first three months, ₹9,750...
The average of 9 numbers is 3. If the average of the first 8 of these numbers is 2,
The average of 9 numbers is 3. If the average of the first 8 of...
The average of 13 numbers is 8. If each number is multiplied by 7, then what will the new average be:
The average of 13 numbers is 8. If each number is multiplied by 7, then...
The average of 13 numbers is 7. If each number is multiplied by 3, then what will the new average be?
The average of 13 numbers is 7. If each number is multiplied by 3, then...
The average of a certain number of quantities is 45. If 5 is added to each quantity, what will be the new average?
The average of a certain number of quantities is 45. If 5 is added to...
Find the average of first 139 even numbers.
Find the average of first 139 even numbers. प्रथम 139 सम संख्याओं का औसत ज्ञात...