An Airbus A380 has 1 first-class section, 1 business-class section
and 4 economy-class sections.
The first-class section has 14 seats.
are being used.

Are more than half the seats
on the plane being used?
You must show your working.
The business-class section has 64 seats.

are being used.
Each economy-class section has 108 seats.
. in each section are being used.

Note: Following your working, your final line

must clearly say YES or NO.