# Simple proportion + ratio - math problems

#### Number of problems found: 46

• Candies There are red, blue and green candies in bad. Red to green is in 6:11 ratio and blue to red in a 7: 5 ratio. In what proportion are blue to green candies?
• Ratios Reduce the numbers: 50 in a 1:2 ratio 111 at a ratio of 2:3 70 at 10:50 560 at a ratio of 3:8
• Proportion 3 For every 8 mango trees in the orchard, there are 4-star apple trees. If there are 1320 trees, how many trees of each kind are there?
• Two brothers The two brothers were to be divided according to the will of land at an area of 1ha 86a 30m2 in a ratio of 5:4. How many will everyone get?
• A map A map of size 60cm by 25cm is reduced in the ratio of 3:5, twice. What are the new dimensions?
• Gold inheritance The king divided the inheritance with his three sons in the ratio of 7: 6: 4. Two of them received 286,000 gold. How much each of the sons got.
• Mixture of nuts Alice bought a mixture of nuts containing cashew nuts, hazelnuts and peanuts in a ratio of 1: 2: 3. Calculate the weight in grams of the whole mixture if the peanuts weigh 90 g.
• Proportional relationship The ordered pairs (6,24) and (1, s) represent a proportional relationship. Find the value of s.
• Five pumps The water tank is filled with two pumps in 48 minutes. How long would it take to fill it with 5 same pumps?
• Five mechanics Five mechanics will make a car for some time. How many cars can 30 mechanics produce at the same time?
• Six percents 6% of the base is 21. How much is 28% of this base?
• Pumps Five pumps pumped 1,800 hl of water for 3 hours. How many hectoliters of water pump same two powerful pumps for six hours?
• Two villages On the map with a scale of 1:40000 are drawn two villages actually 16 km away. What is their distance on the map?
• Apples School kitchen bought 36kg apples for 12 kc/kg. How many kilograms of apples 1/4 cheaper can they buy for the same money?
• Everyone drinks the same 24 bricklayers drink 72 beverage bottles a day at the construction site. How many bottles would 19 bricklayers need? Everyone drinks the same.
• Coke and coal 20.1 tons of coke is produced from 30 tons of black coal. How much coke is made from 1 kilogram of coal?
• Rails 18 m railway weighs 1260 kg. How much weighs 100 m of welded railways?
• Diggers The excavation was carried out in 4 days and 5 workers worked on it for 7 hours a day. Determine how long it would take to excavate if 7 workers worked on it 8 hours a day.
• Working time At 10 hours work shift, work is done in 16 days. How many days will the work be done at 8 hours shifts?
• Save trees 25 tons of old paper will save 1,600 trees. How many tons of paper is needed to save the 32 trees in the park?

Do you have an interesting mathematical word problem that you can't solve it? Submit a math problem, and we can try to solve it.

We will send a solution to your e-mail address. Solved examples are also published here. Please enter the e-mail correctly and check whether you don't have a full mailbox.

Please do not submit problems from current active competitions such as Mathematical Olympiad, correspondence seminars etc...

Check out our ratio calculator.