Question

In a bag the ratio of red balls to green balls is 15 : 26. If 12 more green balls are added to the bag the ratio of red balls to green balls will become 1 : 2. How many red balls are there in the bag?

• A. 30
• B. 45
• C. 36
• D. 15

Answer 1

Answer:

B. 45

ratio of red balls to green balls is 15 : 26. 12 more green balls are added, then ratio of red balls to green balls will become 1 : 2. 15x : (26x + 12) = 1 : 2 ⇒ 30x = 26x + 12 ⇒ 4x = 12 ⇒ x = 3 Number of red balls = 15x = 45