Answer: he needs 18 liters of blue paint and 27 liters of yellow paint.
Step-by-step explanation:
Mark was mixing blue paint and yellow paint in the ratio of 2 to 3 to make green paint. The total ratio of blue paint and yellow paint
is 2 + 3 = 5
Since he wants to make 45 liters of green paint, the amount of blue plaint that Mark needs to mix with the yellow paint would be
2/5 × 45 = 18 liters
Also, the amount of yellow plaint that Mark needs to mix with the blue paint would be
3/5 × 45 = 27 liters
