The ratio of sports cars to the total number of cars on display in Ken's car shop was 4 : 11. ²₇ of the remaining cars on display were family cars and the rest were electric cars and saloon cars in the ratio of 2 : 1. If there were 18 more sports cars than electric cars, how many saloon cars were there?

Sports Cars	Family Cars	Electric Cars	Saloon Cars	Total Cars
4x3	7x3			11x3
	2x3	5x3		7x3
		2x5	1x5
12 u	6 u	10 u	5 u

The total number of electric cars and saloon cars is the combined repeated identity. Make the total number of electric cars and saloon cars the same. LCM of 5 and 3 is 15.

The total number of family cars, electric cars and saloon cars is the next combined repeated identity. Make the total number of family cars, electric cars and saloon cars the same. LCM of 7 and 7 is 21. 

Number of more sports cars than electric cars
= 12 u - 10 u
= 2 u

2 u = 18

1 u = 18 ÷ 2 = 9

Number of saloon cars
= 5 u
= 5 x 9
= 45

Answer(s): 45