# Ratio - practice for 12 year olds

#### Number of problems found: 157

- Divide 73414

Divide the number 34 in the ratio of 3: 4: 10. - Dimensions 71454

I will reduce the poster with pages of 2.4 m and 1.6 m in a ratio of 3: 8. What are its new dimensions? - A recipe 3

A recipe calls for 1/2 cup of ingredient A for every 1 2/3 cups of ingredient B. You use 4 cups of ingredient A. How many cups of ingredient B do you need? - Lightning 69734

The sound travels at a speed of 1km in 3 seconds. If the thunder is heard 12 seconds after the lightning, what distance is the storm? - Three-digit 69114

How many three-digit numbers have a digit sum of 6? Write the ratio of the number of created even and odd numbers and adjust it to the basic form. - Students 65974

In the 9th grade, the ratio of boys to girls is 1: 3. There are a total of 24 students in the class. How many boys and how many girls? - Kilometers 65444

The cyclist will ride 42.5 km in 2.5 hours. How many kilometers will he cover in 4 hours and 15 minutes? - Products 64374

The machine will produce 5,600 products in 7 hours. How many products will they make in 8 hours? - Library

They packed books in the library. They used 45 cm of wrapping paper per book. Wrapping papers are sold in rolls of 3 meters. How many such roles do they need to wrap 20 books? - A pack

A pack of 8 sports drink costs $5. How much would it cost to buy 72 sports drinks? - Rocks

Dana loves rocks! She has 6 pieces of granite, 3 pieces of marble, 14 pieces of sandstone, and 1 piece of slate. What is the ratio of pieces of sandstone to pieces of marble in Dana's collection? - Manganese

Manganese bronze contains the following amounts of metals per pound: copper 0.89 lb, tin 0.10 lb, and manganese 0.01 lb. How much copper is in a shaft that weighs 235 pounds? - Fruits 6

In a basket there are 10 mangoes, 6 guavas, and 8 chicos, What part of the total number of fruits are guavas? - A sum 2

A sum of money is divided between Laura and Joan in the ratio 2:3. Laura gets 8 pesos. How much did Joan get? - The ratio

The ratio of the lengths of the two circles is 5: 2. Find the ratio of a a) the radii of these circles b) the areas for these circles - Earnings 2

Trina's paycheck earnings varies directly as the number of hours she works. If she works 19 hours and earns 187.15 pesos, what should she earn if she worked 40 hours? - A perimeter

A perimeter of a parallelogram is 2.8 meters. The length of one of its sides is equal to one-seventh of the entire perimeter. Find lengths of the sides of the parallelogram. - An orchard

In an orchard, there are 28 apple trees, 27 orange trees, and 14 cherry trees. What is the ratio of apple trees to cherry trees? - A basket

A basket is full of 50 different kinds of fruits that has a ratio of 2:3:5. If the fruits are apple, mango, and guava, how many guavas are there? - What is 9

What is the value of x in the proportion 2 and one-fourth over x = 1 and one-half over 3 and three-fifths? 2 and two-fifths 5 and two-fifths 8 and 1 over 10 12 and 3 over 20

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