In a car park, there are 42 convertibles and scooters. If there are 124 wheels altogether, how many scooters are there?
Number of
convertibles |
Wheels of
convertibles |
Number of
scooters |
Wheels of
scooters |
Total
wheels |
| 42 |
42 x 4 = 168 |
0 |
0 |
168 |
| 41 |
41 x 4 = 164 |
1 |
1 x 2 = 2 |
166 |
| 20 |
20 x 4 = 80 |
22 |
22 x 2 = 44 |
124 |
Total number of wheels if all the vehicles are convertibles
= 42 x 4
= 168
Big difference between the number of wheels between the convertibles and the scooters
= 168 - 124
= 44
Small difference between the number of wheels between a convertible and a scooter
= 4 - 2
= 2
Number of scooters
= 44 ÷ 2
= 22
Answer(s): 22
