Two visas issued - one IPA spass and business visa

[lordvoldemort1]

Hi Guys,

One of my friend has a valid e-visa and also an approved IPA for spass.
The reason he has both is as his IPA was in pending for long time, so he applied for business visa which was approved in 1 day, then IPA of spass also got approved.

1) Is there any issue in holding both of them at the same time ?
2) Could he enter through any one of the above visa or both ??
3) He wants to enter through IPA as he will go there for working. In that case could he face any problem or questions from ICA officers since, they will know from passport number that he holds business visa as well at immigration check ? If yes, What type of questions should he prepare for ?

Thanks in advance.