Question

on an airplane,there are two seats on the left side in each row and three seats on the right side.There are 90 seats on the right side of the plane. a.How many seats are on the left side of the plane? b.How many seats are there altogether?

Answer 1

Answer:

a. 60 seats on the left side

b. 150 seats on both sides

Step-by-step explanation:

There are three seats in each row on the right side and there are 90 seats on the right side of the plane. Then, the number of rows is 30 and can be calculated as:

Rows=90/3 =30

Assuming that the plane have the same number of rows in the left and right side, there are also 30 rows on the left side, so the number of seats on the left side is 60 and it is calculated as:

Seats on the left = 30 rows * 2 seats in each row = 60 seats

Finally the number of seats altogether can be calculated as the sum of the number of seats of the right side and the number of seats of the left side as:

Total Seats = 90 seats + 60 seats = 150 seats

Answer 2

Left side: (equation) 2/x=3/90 (multiply them together by cross multiplying. 90x2 divided by 3)
=60

Altogether: 90 (right) + 60 (left) =150 seats in total