When 20% of a number is added to another number, the number increases by 50%. What is the ratio between the first and second number ?

When 20% of a number is added to another number, the number increases

1.	When 20% of a number is added to another number, the number increases by 50%. What is the ratio between the first and second number ?
A.	5 : 2
B.	5 : 7
C.	7 : 3
D.	9 : 5
Answer» B. 5 : 7

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When 20% of a number is added to another number, the number increases by 50%. What is the ratio between the first and second number ?

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