There were some cars, buses and lorries.
23 of the total vehicles were cars and buses. There were 8 lorries and thrice as many cars as buses. How many more cars than buses were there?
| Cars |
Buses |
Lorries |
| 2x2 |
1x2 |
| 3x1 |
1x1 |
|
| 3 u |
1 u |
2 u |
The total number of cars and buses is repeated. Make the total number of cars and buses the same. LCM of 2 and 4 is 4.
Number of lorries = 2 u
2 u = 8
1 u = 8 ÷ 2 = 4
Number of more cars than buses
= 3 u - 1 u
= 2 u
= 2 x 4
= 8
Answer(s): 8
