The problem is "A worker at a baking company packs rolls twice as fast as he can pack muffins. He packs crackers 2.5 times paster than rolls. He can pack 250 boxes of crackers per hour. How many packs of muffins can he pack in one hour?" Thanks.
The problem is "A worker at a baking company packs rolls twice as fast as he can pack muffins. He packs crackers 2.5 times paster than rolls. He can pack 250 boxes of crackers per hour. How many packs of muffins can he pack in one hour?" Thanks.
Well since he packs rolls twice as fast as muffins we get
$\displaystyle r=2m$ Does this make sense?? lets check
if he packs one muffin he would then have packed two rolls.
He packs crackers 2.5 times faster than rolls
$\displaystyle c=2.5r$ Does this make sense? (yes)
Now we can use the above info to solve 250 crackers in one hr so we solve
$\displaystyle 250=2.5r \iff 100 =r$
now using r=100 in the 1st equation we get
$\displaystyle 100=2m \iff 50 = m$
so he can pack 50 muffins in one hour. yeah!!