In a car park, there are 32 buses and motorbikes. If there are 120 wheels altogether, how many motorbikes are there?
Number of buses |
Wheels of buses |
Number of motorbikes |
Wheels of motorbikes |
Total wheels |
32 |
32 x 4 = 128 |
0 |
0 |
128 |
31 |
31 x 4 = 124 |
1 |
1 x 2 = 2 |
126 |
28 |
28 x 4 = 112 |
4 |
4 x 2 = 8 |
120 |
Total number of wheels if all the vehicles are buses
= 32 x 4
= 128
Big difference between the number of wheels between the buses and the motorbikes
= 128 - 120
= 8
Small difference between the number of wheels between a bus and a motorbike
= 4 - 2
= 2
Number of motorbikes
= 8 ÷ 2
= 4
Answer(s): 4