MommiesAsmgnmemrpagem x . 7:: : C Nicmoodie njckyview allca 4. a. 3 marks For a particular fourdigit bank code, the rst and last digits must be even, and the second digit cannot be 3. Digits cannot be used more than once. To determine the total number of different possible bank codes, a student used the blank method and showed the following work: axgxgxg Find the values of a, b, c and d and explain carefully how you found those numbers. (There is no need to multiply to find the actual number of bank codes). b. 2 marks How many eightletter arrangements can be made from the letters in VERTICAL if the E and R must be together? 0. 2 marks For a picture, 4 girls and 4 boys are being arranged in a line such that girls and boys alternate. Find the number of different arrangements. d. 3 marks How many different 5card hands with at least 3 hearts can be dealt from a standard deck of 52 cards? IHEEEEEEEEDQ IHEEEEEEELE