When 10 per cent of a number is added to another number the second number increases to its 140 per cent. What is the ratio between the first and the second number?	Choose the correct choice from the following options:
A) 3 : 4  B) 4 : 1  C) 3 : 2  D) Data inadequate  E) None of these
Let the first and the second numbers be x and y respect then   y + 10% of x = 140% of y   or, y + 0.1x = 1.4y   or, 0.1x = 0.4y   ∴ x : y = 0.4 : 0.1 = 4 : 1   Answer 4 : 1
<result>B</result>
When 10 per cent of a number is added to another number the second number increases to its 140 per cent. What is the ratio between the first and the second number?