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

A trader sold total 315 TV sets. He sold black and white TV sets at a loss of 6% and colour TV sets at a profit of 15%. Thus he gains 9% on the whole. The number of black and white TV sets, which he has sold, is :

A
126
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
216
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
135
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
90
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D 90
Using alligation, we get

Thus the ratio of B/W TV sets to the no. of colour TV sets = 2 : 5
Therefore, no. of B/W TV sets = 27×315=90.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Averages and Alligations Concepts
QUANTITATIVE APTITUDE
Watch in App
Join BYJU'S Learning Program
CrossIcon