CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Mean

Mean weight o...

Question

Mean weight of 25 students of a class is 60 kg. If mean weight of first 13 students is 57 kg and that of last 13 students is 63 kg, then the weight of the 13th students is

A

60 kg

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

40 kg

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

30 kg

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

None of the above

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D None of the above
Required weight $= 57 \times 8 - (64 + 42 + 29 + 39 + 80 + 52 + 55)$
$= 456 - 361 = 95 k g$

Suggest Corrections

thumbs-up

0

Similar questions

Q. The mean weight of students in a group of seven is 55 kg. If the individual weights of 6 students are 52, 58, 55, 53, 56 and 54; then the weight of the seventh student is:

Q. The mean weight of 60 students of a class is 52.75 kg. If the mean weight of 25 of them is 51 kg, find the mean weight of the remaining students.

Q. The mean weight of a class of 20 students is 48 kg. Two more students weighing 60 kg and 58 kg respectively join the class. What is the mean weight of the class now?

Q. The mean weight of

20

25

kg and the mean weight of another

10

40

kg. Find the mean weight of the

30

Q. The mean weight of

150

students in a certain class is

60

kg. The mean weight of boys in the class is

70

kg and that of girls is

55

kg, then number of boys and girls respectively are

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Central Tendency

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Standard IX Mathematics

Join BYJU'S Learning Program

CrossIcon