wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

In a class, the average height of 35 girls was measured 160 cm. Later on, it was discovered that the height of one of the girl was misread as 144 cm, while her actual height was 104 cm. What was the actual average height of girls in the class? (rounded off to two digits after decimal).


A
159.86 cm
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
158.54 cm
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
159.56 cm
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
158.47 cm
No worries! We‘ve got your back. Try BYJU‘S free classes today!
E
None of these
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is E None of these

Here, value of new quantity added-value of removed item d= ± N. x.
104 - 144 = - 35 × x x= 4035
New average =1604035
= 160 87 = 160 - 1.14
= 158.86 cm


flag
Suggest Corrections
thumbs-up
2
similar_icon
Similar questions
View More
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Inverse Proportions
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon