>
Exams
>
Mathematics
>
Arithmetic Mean
>
the enrolment in a school during six consecutive y
Question:
The enrolment in a school during six consecutive years was as follows:
1555, 1670, 1750, 2013, 2540, 2820
Find the mean enrolment of the school for this period.
CBSE Class VII
Updated On:
Apr 16, 2025
Hide Solution
Verified By Collegedunia
Solution and Explanation
Mean enrolment =
\(\frac{(1555 + 1670 + 1750 + 2013 + 2540 + 2820)}{6}\)
=
\(\frac{12348}{6}\)
= 2058
Download Solution in PDF
Was this answer helpful?
1
0
Top Questions on Arithmetic Mean
If assumed mean of a data is 47.5, \( \sum f_i d_i = 435 \) and \( \sum f_i = 30 \), then mean of that data is:
AP POLYCET - 2025
Mathematics
Arithmetic Mean
View Solution
If the mean of \( x, y, 3, 4 \) is 5, then \( x + y = ? \)
TS POLYCET - 2025
Mathematics
Arithmetic Mean
View Solution
The mean of 20, 30, 38, 40, 50, 56, 60 is:
TS POLYCET - 2025
Mathematics
Arithmetic Mean
View Solution
If each term of a geometric progression \( a_1, a_2, a_3, \dots \) with \( a_1 = \frac{1}{8} \) and \( a_2 \neq a_1 \), is the arithmetic mean of the next two terms and \( S_n = a_1 + a_2 + \dots + a_n \), then \( S_{20} - S_{18} \) is equal to
JEE Main - 2024
Mathematics
Arithmetic Mean
View Solution
If 7 is the mean of 5, 3, 0.5, 4.5, \( a \), 8.5, 9.5, then the value of \( a \) is:
JEECUP - 2024
Mathematics
Arithmetic Mean
View Solution
View More Questions
Questions Asked in CBSE Class VII exam
∆ ABC is right angled at A (Fig 9.16). AD is perpendicular to BC. If AB =
\(5\)
cm, BC =
\(13\)
cm and AC =
\(12\)
cm, Find the area of ∆ ABC. Also find the length of AD.
CBSE Class VII
Area of a Triangle
View Solution
What letters of the English alphabet have reflectional symmetry (i.e., symmetry related to mirror reflection) about.
a vertical mirror
a horizontal mirror
both horizontal and vertical mirrors
CBSE Class VII
Lines Of Symmetry For Regular Polygons
View Solution
Find:
15% of 250
1% of 1 hour
20% of Rs 2500
75% of 1 kg
CBSE Class VII
Use Of Percentages
View Solution
The performance of a student in 1st Term and 2nd Term is given. Draw a double bar graph choose the appropriate scale and answer the following:
(i) In which subject, has the child improved his performance the most?
(ii) In which subject is the improvement the least?
(iii) Has the performance gone down in any subject?
CBSE Class VII
Use Of Bar Graphs With A Different Purpose
View Solution
In a class test (+3) marks are given for every correct answer and (–2) marks are given for every incorrect answer and no marks for not attempting any question. (i) Radhika scored 20 marks. If she has got 12 correct answers, how many questions has she attempted incorrectly? (ii) Mohini scores –5 marks in this test, though she has got 7 correct answers. How many questions has she attempted incorrectly?
CBSE Class VII
Properties Of Division Of Integers
View Solution
View More Questions