Two numbers are in the ratio 4 : 5. If 2 is subtracted from the first number and 2 is added to the second number, then their ratio 2 : 3. The difference between the two numbers is:
A1
B9
C5
D6
Answer:
C. 5
Read Explanation:
numbers are 4x and 5x
The difference of the numbers = 5x - 4x = x
(4x - 2)/(5x + 2) = 2/3
12x - 6 = 10x + 4
12x - 10x = 4 + 6
2x = 10
x = 10/2 = 5