Of the cars in a used car lot , 2/5 are the color grey.b1/3 of the cars
are the color red and the remaining cars are blue. If there are 30 cars in total, how many cars are blue?
To solve this problem, we need to find the fraction of cars that are blue. We know that 2/5 of the cars are grey and 1/3 of the cars are red. Thus, 1 - (2/5 + 1/3) gives us the fraction of cars that are blue:
1 - (2/5 + 1/3) = 1 - (6/15 + 5/15) = 1 - 11/15 = 4/15
Now, we can find the number of blue cars by multiplying the total number of cars by the fraction that represents the blue cars:
Blue cars = (4/15) * 30 = 4 * 2 = 8
Therefore, there are 8 blue cars in the car lot.