Question

An Airbus A380 has 1 first class section 1 business class section and 4 economy class sections

the first class section has 14 seats. 6/7 are being used.

the business class section has 64 seats. 7/16 are being used.

each economy class section has 117 seats. 7/13 in each section are being used.

are more than half the seats on the plane being used you must show your working out. ​

Answer 1

Yes, more than half are being used. (292 out of 546 used)

Explanation:

The first part of this problem is to determine the total amount of seats on the plane so we can determine what half of the seats would be.

1st class has 14 seats.

Business-class has 64 seats.

And the 4 economy classes have 117 each, meaning 117 * 4 = 468

So the total amount of seats are 14 + 64 + 468 = 546

So half that amount would be 273.

Now we can determine the number of seats being used.

1st class has (6/7) * 14 = 12 seats used

Buisness-class has (7/16) * 64 = 28 seats being used

Economy has 4 * (7/13) * 117 = 4 * 63 = 252 seats being used

So the total amount of used seats would be 12 + 28 + 252 = 292.

Note that 292 is greater than 273, so there is indeed more than half the seats on the plane being used.

Cheers.