Question 193142
good  problem

increasing  demand  is  an  arithmetic  sequence
H=110,000+(n-1)*2500
H(24)= 110,000+23*2500=110,000+57500=167,500

proportion  of  required  machines  to  fit  capacity
1/45,000=x/167,500
cross  multiply

167,500=45,000x
x=3.7  or  4  machines