Maths practice for 12-year-olds - page 5 of 347

Number of problems found: 6930

Repeating to infinity
How do I express 0.99999999… as a fraction? (nine repeating) Additional questions: Can you write 0.9999… repeating as a fraction? How do you convert 0.9 repeating into a fraction?
Mixed plus proper fraction
1½ + 1/3 = ?
Two trains 15
A train travelling at 50 km/h leaves Delhi at 8 AM and another train travelling at 70 km/h leaves Delhi at 11 AM in the same direction. How many km from Delhi will they be when the faster train catches the slower one?
Antecedent and consequent
In a ratio equal to 5:8, the antecedent is 40. Find the consequent.
Avg velocity
A car travels 120 km at 60 km/h and another 120 km at 40 km/h. What is its average speed for the entire journey?
Direct proportional
If m is proportional to n and m = 5 when n = 4, what is the value of m when n = 18?
Crossing a pole
A train 200 m long is moving at a speed of 72 km/h. How long will it take to pass a stationary pole?
Three quarters of a hour
Calculate the value of 3/4 of 40 hours.
Two wipers
What A car has two wipers which do not overlap. Each wiper has a blade of length 21 cm, sweeping through an angle of 120°. Find the total area cleaned at each sweep of the blades.
Bags of clothes
Nathan and John are collecting clothes for a clothing drive. John collected 1/10 as many clothes as Nathan did. If Nathan collected 1/3 of a bag of clothes, how many bags of clothes did John collect?
LCM and HCF 3
LCM of two integers is 1237. What is their HCF?
A cube 4
A cube of edge 5 cm is cut into cubes, each of edge 1 cm. Find the ratio of the total surface area of one of the small cubes to that of the large cube.
Food - rice
A man spent 1/3 of his salary on food. 1/4 of what he spent on food was on rice. What fraction of his salary did he spend on rice?
Winter clothing drive
Grace's class collected 10 pounds of clothing for the winter clothing drive. Lucia's class collected 1 1/2 times as much clothing as Grace's class. How many pounds of clothing did Lucia's class collect? Write your answer as a fraction or as a whole or mix
Two games
In a class of 65 students, 30 students play cricket, 20 students play tennis, and 10 students play both games. Then, find the number of students who play neither.
Gerda
Gerda is baking. She used 2/3 cup of flour for a pie and 1/3 cup for a cake. How much flour did she use in total?
Fruit in a basket
Christian put 8/20 kg of apples into a basket. Chris put 7/20 kg of oranges, and Vlad placed 4/20 kg of mangoes into the same basket. How many kilograms of fruit were put in the basket?
A bike 2
A bike is travelling at 72 km/h. How much distance will it cover in 15 seconds?
The supplement
The supplement of an angle is four times its complement. Find the angle.
The remainder
Write the remainder as a fraction of 364 divided by 16

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