In a car park, there are 50 sports cars and bicycles. If there are 128 wheels altogether, how many bicycles are there?
Number of
sports cars |
Wheels of
sports cars |
Number of
bicycles |
Wheels of
bicycles |
Total
wheels |
| 50 |
50 x 4 = 200 |
0 |
0 |
200 |
| 49 |
49 x 4 = 196 |
1 |
1 x 2 = 2 |
198 |
| 14 |
14 x 4 = 56 |
36 |
36 x 2 = 72 |
128 |
Total number of wheels if all the vehicles are sports cars
= 50 x 4
= 200
Big difference between the number of wheels between the sports cars and the bicycles
= 200 - 128
= 72
Small difference between the number of wheels between a sports car and a bicycle
= 4 - 2
= 2
Number of bicycles
= 72 ÷ 2
= 36
Answer(s): 36
