Hi People,
Find out the number in "?", it is the number to open the attached document.
Once you found the answer, please add your name into the attached document and forward to your friend.
|---+----+----+------+------|
| 2 | 3 | 4 | 15 | 12 |
|---+----+----+------+------|
| 3 | 4 | 5 | 28 | 20 |
|---+----+----+------+------|
| 4 | 5 | 6 | 45 | 30 |
|---+----+----+------+------|
| 5 | 6 | 7 | 66 | 42 |
|---+----+----+------+------|
| 6 | 7 | 8 | ? | 56 |
|---+----+----+------+------|
If you are an Architect, perhaps you will need 1 hours;
If you are a Doctor, perhaps you will need 3 hours;
If you are an Accountant OR have studied Economics, maybe 1 month;
If you are a Lawyer, maybe you can never find the answer.
If you are an Engineer, you will need 5 minutes….