Sequins come in packs of 75. Agnes uses 12 sequins on each costume. If she has one pack of sequins, how many costumes can she make?

1 Answer
Oct 10, 2016

Six.

Explanation:

You can solve this problem in two ways: you divide #75# by #12#, noticing that the result is #6.25#. This means that #75# contains #12# six times, and there are some leftovers. So, you can make #6# costumes, because the remaining sequins are not enough for the seventh dress.

Or, you can see it the other way around: start counting from one dress, and see how many sequins you need, keeping in mind that you have a total of #75#:

#1# dress #-># #12# sequins;
#2# dresses #-># #24# sequins;
#3# dresses #-># #36# sequins;
#4# dresses #-># #48# sequins;
#5# dresses #-># #60# sequins;
#6# dresses #-># #72# sequins;
#7# dresses #-># #86# sequins;

So, as you can see, we have enough sequins for #6# dresses, but not for seven.