in a class 30% students got more than 60%marks and 84 students got60%marks .if the number of student who got less than 60% marks is one-fourth of the number of students who got 60% marks then find the total number of students in the class
Answers
Step-by-step explanation:
60% students got A grade. 40% students got other than A. 60% is equal to 24 students.( given). 1% ...
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Friends….! If the number of students who got an A is 24, which is 60 percent, how
Answer:
84+21+ 45= 150
Step-by-step explanation:
Let , the total number of students in the class be x
Given,
The no. of students who got 60% marks = 84 The no. of students who got less than 60% is 1/4 of 84 =21
Percentage of students who got more than 60% =30%
If the percentage of students who got more than 60% is 30% , then the rest of the students will be 70% of the total number of students in the class.
Therefore,
84+21 = 70% of x
105 = 70/100 of x
105×100/70 = x
10500÷70 =x
150 =x
We can justify it ,
If the total number of students in the class is 150, then the no. of students who got more than 60% = 30÷100×150
= 4500÷100
= 45
If we add all the no.s of students
= 84+21+45
=105+45
=150
Hence , the total number of students in the class is 150 .