Question 637422
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Hi,
A garden contains bushes with red,yellow,pink and white roses. {{{4}}} different colors  
How many different bouquets of four roses can be selected ? {{{4*4*4*4 = 256}}}

Same Idea would apply for how many passwords/4 numbers, could be formed
using 4 different numbers (If numbers could be repeated) {{{4*4*4*4}}}