Alisha wants to survey 30% of her sixth form out how many of them are going to higher education. She surveys 81 students in total. If there are 156 students in year 12, how many students are there in year 13?
Answers
Given : Alisha wants to survey 30% of her students
She surveys 81 students in total
there are 156 students in year 12,
To Find : how many students are there in year 13
Solution:
Let say students in year 13 = S
students in year 12 = 156
Total Students = S + 156
Students surveyed = 30 %
Students surveyed = (30/100)(S + 156)
= (3/10)(S + 156)
Students surveyed = 81
Equating both
=> (3/10)(S + 156) = 81
=> S + 156 = 270
=> S = 114
students in year 13 are 114
Learn More:
Given below is a venn diagram for sets of students who takes maths ...
brainly.in/question/22172776
consider the following venn diagram where X,Y,Z are three sets. Let ...
brainly.in/question/23070207
Given below is a Venn diagram for sets of students who take Maths ...
brainly.in/question/21812746