d) There are 70 cars parked in a garage. Three-fifths of the cars were small cars and the rest
were big cars. How many big cars are there in the garage?
To find the number of big cars in the garage, we first need to find the number of small cars.
Three-fifths of the cars are small cars, so we have (3/5) * 70 = 42 small cars.
To find the number of big cars, we subtract the number of small cars from the total number of cars:
70 - 42 = 28 big cars.
Therefore, there are 28 big cars in the garage.