278 JIODKKN BUTTER MAKING. 



Explanation: Every 100 lbs. of milk delivers 22.5 

 lbs. oi: cream. Therefore^ there are as many times 

 22.5 lbs. of cream delivered as 100 is contained in 

 35,000, whkh is 350; 350X22.5=7,875 lbs., the total 

 amount of cream. 



Problems for Practice. 



Find the amount of cream when the per cent of 

 cream from : 



1. 5,507 lbs. of milk is 10.5% ? Ans. 578.23 lbs. 



2. 10,780 lbs. of milk is 12.7?% Ans. 1,369.06 lbs. 



3. 15,872 lbs. of milk is 15.2%? Ans. 2,412.54 lbs. 



4. 20,975 lbs. of milk is 20.1%? Ans. 4,215.9 lbs. 



5. 40,435 lbs. of milk is 23.3% ? Ans. 9,421.35 lbs. 



61. To find the approximate amount of cream, 

 knowing the test of cream, and the amount and test 

 of the whole milk. Skim milk losses are 1V4 per 

 cent of the total fat in the milk. 



Problem: What is the amount of cream received 

 from 25,000 lbs. of milk testing 4 per cent, the cream 

 testing 30 per cent and the butter milk losses being 

 1^ per cent of the fat in the milk? 



Rule: I. Multiply the amount of milk by its test, 

 and multiply this result by the per cent of loss. 



II. From the total fat in the milk, subtract the 

 loss, and divide the remainder by the cream test, 

 multiply the quotient by 100 and the result will be 

 the amount, of cream. 



25,000 X4%=1,000 lbs.; l,000Xli/4%=12.50 loss. 



1,000—12.50=987.5 ; (987.5=30) X 100=3,291.66 

 lbs. cream. Ans. 



