Question

car has four wheels how many wheels will be required for making 150 cars

Answer 1

No. of wheels for a car = 4
No. of wheels 150 car has = 4 × 150 = 600
Thus, 600 wheels will be required for making 150 cars

Answer 2

1 car has 4 wheels
n cars require (4xn) wheels

since n here is 150
thus, 150 cars require (150x4=600 wheels)