write a proportion and solve for the value of N 1. N oranges in 24 trays : 6 oranges in 2 trays 2. 60 kilograms in 2 hours : N km in : 6 hours 3. 50 pencils for 5 boxes : 250 pencils for N boxes 4. 10 nurses for N patients : 15 nurses for 1875 patients 5. 1000 words in 8 minutes : N words in 3 minutes