A horse eats 10 KG of hay a day. A small bag contains 20 KG of hay and a large bag contain 25 KG of hay. If 4 small bags and 8 large bags of hay are used everyday to feed the horses in the farm, how many horses are there in the farm?

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15