What number must be added to each of the numbers 7, 11 and 19 so that the resulting numbers may be in continued proportion?

1. −4

2. −3

3. 3

4. 4

Two numbers are in the ratio of 3 : 5. If 9 is subtracted from each, they are in the ratio of 12 : 23. The larger number is :

1. 40

2. 45

3. 55

4. 60