I searched about it and i see this below :

Svchost.exe is a generic host process name for services that run from dynamic-link libraries (DLLs).
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6 of them were running in background with the same name svchost.exe.

is that any problem ?

normally how many svchost will run ?

If i may please refer to this artical for more information on svchost.exe

What is svchost.exe And Why Is It Running? :: the How-To Geek

Now i understand,thanks for your information...............