Q. Four coins are tossed simultanously, in how many distinct ways the coin can show up?
a. 8 b. 4 c. 16 d. 32 e. none of these
Q. In how many ways 5 people can fill 5 dintinct posts??
a. 60 b. 120 c. 25 d. 50 e. none of these
You should also know that MHF is an international forum. Urgency of the kind you're talking about simply isn't part of MHF. Most "urgent help" is for homework that counts towards a final grade. It is forum policy not knowingly to help with such problems.