Salama to all!

mera Sawal ye hy khy ager hamary pas ik ram ho jis k uper na likha ho k wo katny mb ki hy ya gb ki our us ko system men lagaey baghair kasy pata chaly ga k wo katny mb ki hy.

kya koei ye bata sakta hy. Thanks

Ye koei challenge ne hy sirf information k liye.