Maths practice for 11-year-olds. - page 2 of 197
Number of problems found: 3928
- Directly proportional
A person earns directly proportional to the number of hours she works daily. If she works h hours one day and makes s dollars an hour, what is the total amount she earns for the day in terms of h and s?
- A bike 2
A bike is running 72 km/hr. How much distance will it cover in 15 seconds?
- The number 88
Write the number 88 as a product of prime factors.
- Simple equation 12
Three times a number divided by 2 plus 5 equals 20. Find the number.
- A capsule
A medicine capsule is a cylinder with two hemispheres stuck to each end. Its length is 14 mm, and its diameter is 5 mm. Find its surface area.
- Tuesday temperature
The temperature on Monday was -23°F. The temperature on Tuesday was 18° higher. What was the temperature on Tuesday?
- Ones cube
Find the volume of a cube whose total surface area is 6 m².
- A restaurant’s
A restaurant’s menu has 3 appetizers, 3 mains and 2 desserts. In how many way can a 3-course meal be ordered?
- A woodcutter
A woodcutter took 12 minutes to make 3 pieces of a block of wood. How much time would be needed to make 5 such pieces?
- Cows and hens
In a group of cows and hens, the number of legs is 14, more than twice the number of heads. Find the number of cows.
- The mystery number
Find the number that is 10,000 less than 632,724.925
- Four years
Four years ago the average age of A and B was 18 years . If the present average age of A, B, and C is 24 years. Find the age of C after 8 years .
- The product 15
The product of two consecutive even numbers is 48. If the square of the smaller number is 35, what is the other number?
- Parallelogram - angles
In a parallelogram ABCD, if angle alpha measures ∠A = 70°, find all the other angles.
- The sum 46
The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?
- Chocolate cookies
Kelly bought a package of 28 chocolate cookies. Each cookie weighed 0.69 ounces. How much did the 28 cookies weigh all together?
- A triangular prism
Find the number of faces, edges, and vertices of a triangular prism.
- Circle's diameter
The diameter of a circle is 32 inches. What is the circle's area? Use π(pi) ≈ 3.14 and round your answer to the nearest hundredth.
- Train same direction
Find the time taken by a train 170 m long, running at the speed of 83 km/h, to cross another train 180 m running at the speed of 65 km/h in the same direction.
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