You can simplify it further to: 2n-1 over 3n-5
Use p for the price of the sandwich and drink.
(p+ 2.95 x.15) + (p x .20)
(I JUST GUESSED. IM VERY DUMB, SO DO NOT TRUST THIS ANSWER.
Tricky question. This isn't a ratio question even though it seems like one.
First divide 7 by 4.
With more men, the hours taken to repair a road will be even shorter.
So next divide 6 by 1.75.
Answer : It'll take 3.43 hours to do the job if they work at the same rate.
Hope this helps. - M
Try this, I think its correct