When 30% of one number is subtracted from another number, the second number reduces to its four-fifths. What is the ratio of the first to the second number?
ক
3 : 2
খ
2 : 3
গ
2 : 5
ঘ
4 : 7
সঠিক উত্তর: 2 : 3
Let the 1st number is X