Supriya Mondal   9 years AGO

Total marks={(2*4)+(3*7)+(4*10)+(5*15)+(6*8)+(7*5)+(8*1)}
=235
Total student=4+7+10+15+8+5+1
=50
So, average marks of the class=235/50=4.7
So, option 3)4.7 is the right answer

Like? Yes (7) | No (3)  

moumita   9 years AGO

total marks = 2*4+3*7+4*10+5*15+6*8+7*5+8*1 = 235
total no of students =4+7+10+15+8+5+1 = 50
avg = 235/50 = 4.7
Ans (3) 4.7

Like? Yes (3) | No (1)  

Koustubh Bhardwaj   9 years AGO

avg marks = summation of mark scored multiplied by no. of students scored whole divided by total no. of students

Like? Yes (2) | No   

b.subbarao   9 years AGO

2*4=8
3*7=21
4*10=40
5*15=75
6*8=48
7*5=35
8*1=8
total students=50
total marks=235
average marks=235/50=4.7

Like? Yes (2) | No   

ADERU CHENCHU NITHISH   9 years AGO

avg=ratio of sum of products of marks and No of student to the sum of no of students
avg=235/50=4.7 ans

Like? Yes (2) | No   

aman aditya   9 years AGO

(8+21+40+75+48+35+8)/50=4.7

Like? Yes (2) | No (1)  

Devendra Marghade   9 years AGO

Average marks=Total marks/number of students
=(2*4)+(3*7)+(4*10)+(5*15)+(6*8)+(7*5)+(8*1)/50
=23.5/50=4.7
So answer= Option (3)

Like? Yes (2) | No (1)  

Diwakar Verma   9 years AGO

multiply marks with student and divide by total no of students

Like? Yes (2) | No (1)  

SUSHANT KUMAR   9 years AGO

total marks= 2*4+3*7+4*10+5*15+6*8+7*5+8*1
=235
now total no of students=4+7+10+15+8+5+1=50
so avg= 235/50
=4.7

Like? Yes (2) | No (1)  

SAGNIK DATTA   9 years AGO

total marks=(2*4)+(3*7)+(4*10)+(5*15)+(6*8)+(7*5)+(8*1)=235
total students=4+7+10+15+8+5+1=50
so average=total marks/toale students = 4.7

Like? Yes (2) | No (1)  

Madhumoy Gope   9 years AGO

Total nos got =(2*4+3*7+4*10+5*15+6*8+7*5+8*1)=235
Total no of student=4+7+10+15+8+5+1=50
So,avg no of class =235/50=4.7

Like? Yes (2) | No (1)  

shubham sharma   9 years AGO

average=(4x2 + 7x3 + 10 x 4 + 15x5+ 8x6+ 7x5+ 8x1)/50
=4.7

Like? Yes (2) | No (1)  

Surya Rajitha   9 years AGO

Total no. of student= 4+7+10+15+8+5+1=50

average marks = (8+21+40+75+48+35+8)/50= 4.7

Like? Yes (2) | No (1)  

suraj nath prasad   9 years AGO

av marks=4*2+3*7+4*10+5*15+6*8+7*5+8*1/no of students

Like? Yes (2) | No (1)  

sravani   9 years AGO

Sigma(marks*persons)/total persons=4.7

Like? Yes (2) | No (1)  

ANANTHI.P   9 years AGO

(MARKS*NO.OF STUDENTS)/TOTAL NO.OF STUDENTS
(2*4+3*7+4*10+5*15+6*8+7*5+8*1)/50=235/50=4.7

Like? Yes (2) | No (1)  

kranthi kanchanapally   9 years AGO

Total number of students is=50
then marks*num of students=2*4+3*7+4*10+5*15+6*8+5*7+8*1=235
then avg=235/50=4.7

Like? Yes (1) | No   

neha gupta   9 years AGO

to find average we will use method of mean.
first we will find the sum of (multiplication of marks and frequency)as follows:
(4*2)+(3*7)+(4*10)+(5*15)+(6*8)+(7*5)+(8*1)=235
now divide it with total number of students
235/50=4.7

Like? Yes (2) | No (1)  

sumit bansode   9 years AGO

2×4+3×7+.....+8×1=235
4+7+10+15+8+5+1=50
avg=235/50=4.7

Like? Yes (2) | No (1)  

Arya Nivas   9 years AGO

(2*4)+(3*7)+(4*10)+(5*15)+(6*8)+(7*5)+(8*1)/4+7+10+15+8+5+1
=>235/50=4.7

Like? Yes (1) | No   

kambalanaresh   9 years AGO

4 students got 2 marks average i.e 4*2=8 7 students got 3 marks average i.e7*3=21 ,10 students got 4 marks average i.e 10*4=40,15 students got 5 marks average i.e 15*5=75,8 students got 6 marks average i.e 8*6=48,5 students got 7 marks average i.e 7*5=35,1 student got 8 marks average i.e 1*8=8 so toal maeks is 235 and total students is 50 so average is 4.7

Like? Yes (1) | No   

siddharth prakash singh   9 years AGO

avg marks= total marks/ total no of students
=(8+21+40+75+48+35+8)/(4+7+10+15+8+5+1)
235/50
=4.7

Like? Yes (1) | No   

Aditi Tenguria   9 years AGO

total marks= 4*2+7*3+4*10+5*15+6*8+7*5+8*1=. 235
total students=50
average marks=235/50 =4.7

Like? Yes (1) | No   

SAURABH KUMAR SINHA   9 years AGO

Total marks of the class=235.
Total Students in the class=50
So,Required average=235÷50 =4.7. ANS.

Like? Yes (1) | No   

sompon temtheerakij   9 years AGO

[(2*4)+(3*7)+(4*10)+(5*15)+(6*8)+(7*5)+(8*1)]/50 = 4.7

Like? Yes (1) | No   

Vaibhav Srivastava   9 years AGO

Total Marks = Marks * Number of Students
= (4*2) + (7*3) + (10*4) + (15*5) + (8*6) + (5*7) + (1*8)
= 235
Total number of Students = 4+7+10+15+8+5+1
= 50
Average = Total Marks / Total number of Students
= 235 / 50
= 4.7
So, option 3) 4.7 is correct.

Like? Yes (1) | No   

Meenakshi   9 years AGO

Total number of students=50
Average marks of the class=(4*2)+(7*3)+(10*4)+(15*5)+(8*6)+(5*7)+(1*8) =235/50
=4.7
option 3)

Like? Yes (1) | No   

siva naga kumar   9 years AGO

(8 21 40 75 48 35 8)/50
=4.7

Like? Yes (1) | No   

DEBAYAN BASU   9 years AGO

(2*4+3*7+4*10+5*15+6*8+7*5+8*1)/(4+7+10+15+8+5+1)=4.7

Like? Yes (1) | No   

Abhishek Ranjan   9 years AGO

Total marks = 227
total students = 50
average marks= 227÷50= 4.7

Like? Yes (1) | No   

Harshaa K   9 years AGO

Avg=(4*2+7*3+10*4+15*5+8*6+5*7+8*1)/(4+7+10+15+8+5+1)=235/50=4.7

Like? Yes (1) | No   

MRITUNJAY   9 years AGO

2*4+3*7+4*10+5*15+6*8+7*5+8*1/50=235/50=4.7

Like? Yes (1) | No   

shaik kajal begum   9 years AGO

(2×4+3×7+4×10+5×15+6×8+7×5+8×1)÷50=4.7

Like? Yes (1) | No   

Vishal Kharche   9 years AGO

Total students = 50
Total marks = 235
Average= 235/50= 4.7

Like? Yes (1) | No   

M.Ranjith Kumar    9 years AGO

total no of stu=50
Total mark of all stu=235
So Avg mark of stu=235/50=4.7

Like? Yes (1) | No   

PAWAN KUMAR   9 years AGO

Total marks = 235
Total students = 50
So, average = 235/50 = 4.70

Like? Yes (1) | No   

Rahul Verma   9 years AGO

avg marks of the class will b summation of marks obtained by all the students divided by the no of students.
i.e. (2*4+3*7+4*10+5*15+6*8+7*5+8*1)/(4+7+10+15+8+5+1)
=235/50
=4.7

Like? Yes (1) | No   

Neha Shahi   9 years AGO

TOTAL MARKS = 235
TOTAL NO OF STUDENTS = 50
AVERAGE MARKS OF THE CLASS = 235/50 = 4.7

Like? Yes (1) | No   

KIRANKUMARREDDY   9 years AGO

avg=total no of marks/no of students

Like? Yes (1) | No   

sai   9 years AGO

69+75+48+35+8/50 =4.7

Like? Yes (1) | No   

Pranati Kundu   9 years AGO

total marks/ total students
=235/50
=4.7

Like? Yes (1) | No   

kishore   9 years AGO

2*4 + 3*7 + 4*10 + 5*15 + 6*8 + 7*5 + 1*8 = 235 = total
no.of students = 4+7+10+15+8+5+1 =50
so avg = 235/50 = 4.7

Like? Yes (1) | No   

prashant kumar choudhary   9 years AGO

after calculating total no of student it comes 235 that is div by no of student 50 which is equel to 4.7

Like? Yes (1) | No   

poojasaisri   9 years AGO

Average= ( sum of the quantities ) / (Number of quantities)
=(8+21+40+75+48+35+8)/50
=235/50
=4.7

Like? Yes (1) | No   

AJIT SINGH   9 years AGO

AVERAGE = (SUMMATION OF MARKS)/ TOTAL NO OF STUDENTS

Like? Yes (1) | No   

Supreeth R   9 years AGO

no of students : 50
total no of marks scored by students : 235
avg : 235/50= 4.7

Like? Yes (1) | No   

CROSSWIN   9 years AGO

Sum of (no.of Marks in each category*no.of Student in each category)/no.of student

Like? Yes (1) | No   

vibhu raj gupta   9 years AGO

toatal marks=235
total student=50
avg marks=235/50=4.7

Like? Yes (1) | No   

Yekollu Muneeswar   9 years AGO

Total # of students in class: 4+7+10+15+8+5+1 = 50
total marks of the class: 8+21+40+75+48+35+8 = 235
2*4=8
3*7=21
4*10=40
5*15=75
6*8=48
7*5=35
8*1=8

avg marks= 235/50= 4.7

Like? Yes (1) | No   

PRASHANT KUMAR   9 years AGO

(2*4+3*7+4*10.....7*5+1*8)/50

Like? Yes (1) | No   

Sure Mamatha   9 years AGO

( (2*4)+(3*7)+(4*10)+(5*15)+(6*8)+(7*5)+(8*1) ) / ( 4+7+10+15+8+5+1 )

= 4.7

Like? Yes (1) | No   

Sumit Agarwal   9 years AGO

Multiply all marks with no. of students and divide by total no. of students
Total marks 235
Total students 50
Average marks 4.7

Like? Yes (1) | No   

VINOD KUMAR REDDY   9 years AGO

average=sum of products of marks and no. of students/total no. of students

Like? Yes (1) | No   

Soma Naresh   9 years AGO

2*4 + 3*7 + 4*10 +5*15 + 6*8 + 7*5 + 8*1 = 235
total no. of students = 4+7+10+15+8+5+1 = 50
avg= 235/50= 4.7

Like? Yes (1) | No   

Ayush Maheshwari   9 years AGO

total marks obtained = 2*4+3*7+4*10+5*15+6*8+7*5+8*1
= 235
total no of students = 50

average marks of class = 235/50

Like? Yes (1) | No