Two size of envelope having color of red,blue, purple ,green..company made packages of three envelopes either same size same color or same size different color...how many packages possible if sequence of color doesn't matters?  Choose the correct answer: A) 12 B) 13 C) 14 D) 15 E) 16
For same colour four combinations are possible GGG,RRR,BBB,PPP   Four diff color four combinations r possible   GBR,GRP,GBP,RBP   So total 8 combination for each size   So no. Of package=16   ANSW16R:16
<result>E</result>
Two size of envelope having color of red,blue, purple ,green..company made packages of three envelopes either same size same color or same size different color...how many packages possible if sequence of color doesn't matters?