Step-by-step explanation: Given : The prices of two radios are in the ratio x:y When the prices are both increased by £20, the ratio becomes 5:2 Then, When the prices are both reduced by £5, the ratio becomes 5:1 Then, Subtract (2) from (1), we get
Put this value in (2), we get
Now, the ratio of x:y= Dividing 4 from both the numerator and denominator, we get x:y= =2:5