There are total 16+14=30 tiles which are not blue. So, we can get maximum 30 tiles of different colours(not blue) in our first 30 chances then we must get at least 10 blue marbles in our next 10chances. Therefore, we expect at least 10blue marbles if we drawn marbles randomly for 40 times from the bag.
<span>If you are reading a story problem that says one and a half this would indicate the mixed number 11/2 or the decimal 1.5, which are all equivalent.</span>
