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

# The average weight of a group of 75 girls was calculated as 47 kg. It was later discovered that, the weight of one of the girls was read as 45 kg, whereas her actual weight was 25 kg. What is the actual average weight of the group of 75 girls? (rounded off to two digits after decimal)

A
46.73 kg
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
46.64 kg
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
45.96 kg
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Cannot be determined
No worries! We‘ve got your back. Try BYJU‘S free classes today!
E
None of these
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

## The correct option is A 46.73 kg Here, sum of added quantities - sum of removed quantities ± N. x ⇒ 25 - 45 = - 75 . x ⇒ x=2075=0.26 ∴ New average = 47 - 0.26 = 46.73 kg

Suggest Corrections
0
Join BYJU'S Learning Program
Related Videos
Averages
QUANTITATIVE APTITUDE
Watch in App
Explore more
Join BYJU'S Learning Program