Question

After 10% and 20% discount on items A and B respectively, their prices become equal, What was the ratio of the actual prices of A to B? a. 10:9 b. 9:10 c. 9:8 d. 8:9​

Answer 1

Answer:

b. 9:10

Step-by-step explanation:

as if we minus 10% from 90 of 9 is equal to 80

n

then if we minus 20% from 100 of 10 is equal to 80

that's y it is 9:10