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Find the value n in 3 ∶ 5 = n ∶ 15
9
5/18 = 10/n
36
n/6 = 8/4
12
John can type 200 words in 2 minutes. How long will it take him to type 600 words?
6 minutes
A recipe for 10 cookies calls for 3 cups of flour. How many cookies can be made if 12 cups of flour will be used?
40 cookies
Find the value of N such that 3: 6 is inversely proportional to N: 9.
2
If 2 men can paint a wall in 36 hours, find the number of hours it will take 6 men to paint the same wall.
It will take 12 hours for 6 men to paint the same wall.
Six men have enough food for 8 days. How long will the same amount of food last if there are only 4 men?
The food will last 12 days if there are only 4 men.
Twelve men can reap a field in 15 days. How many men are needed to reap the same field in 10 days?
Eighteen men are needed to reap the same field in 10 days.
It takes 1 hour and 30 minutes for 5 pipes to fill a tank. How many pipes are needed to fill the same tank in 30 minutes?
Fifteen pipes are needed to fill the same tank in 30 minutes.
