Maths practice for 12-year-olds - page 111 of 361
Number of problems found: 7204
- 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 - The cost 4
The cost to tile a floor that measures 7 x 6 square feet is $ 2,100. How much will tile a floor measuring 11 x 13 square feet cost? - Grandma
Grandma is 57 years older than her two twin granddaughters. If we add the ages of an older woman with both granddaughters, we get the number 99. How old is her old woman? - Corresponding 59063
Calculate the radius and area of the circular segment if the center angle = 106° and the length of the corresponding circular arc is l = 52 cm. - Volleyball 2
In a volleyball game, Michael made four shots in 8 tries. At this rate, how many shots can he make in 12 tries? - Circle segment
A quarter circle with a radius of 4 has the same area as a circle segment with a radius of 3. What is the magnitude of the center angle of the circle segment? - Determine 58963
The field has the shape of a circle. If he wants to run 800m, Honza has to go around the field 2.5 times. Determine the diameter of the pitch for the whole meter.
- Adult
Adult tickets for a puppet show sell at P125.05 and children at P99.35. If 25 parents and 70 children watched that show, how much did the show earn? - One-quarter 58883
The workers dug one-quarter of the excavation on the first day, half the rest on the second day, and the remaining 15 m on the third day. How many meters did they dig on the first and second day? - Three in ratio
1/8 of the balls in a bag are red, 5/8 are blue, and the rest are green. Find the ratio of red to blue to green balls. - Please 3
Please help; I'm lost! I'm calculating the difference between two Fahrenheit degrees 55°F - 37°F = 18 °F Now, if I convert the degrees Fahrenheit to Celsius before subtracting, we get 12.78°C —2.78 =10°C. How is that possible when 18°F does not equal 10°C - Contribution 58773
How much does the apartment owner contribute when the contribution corresponds to his contribution to the common parts, and the share is 99.5/5674.8 out of the amount of CZK 10,000? - The temperature 20 The temperature is rising 4 degrees each hour and is currently 62 degrees. How many hours before the temperature is at least 80 degrees?
- Mary solved
Mary solved six out of ten problems correctly in mathematics. What is the ratio of the number of correct answers to the number of wrong answers? Show the solution. - Unknown number 32
What number am I? I am greater than 10 but less than 20. My 1/3 is equal to my 1/5 plus 2.
- Which 8
Which among the following real numbers below is the least? A. 5/8 B. 0.75 C. 7/10 D. 35/99 - Distance 58693
Peter takes a step of 0.5m and walks a hundred steps. How long would this distance be on a 1:1000-scale map? - ABS triangle
Point S is the center of the square ABCD. The ABS triangle has an area of 9 cm². What is the circumference of the square in cm? - Lcm and hcf
If the LCM of a and 18 is 36 and the HCF of a and 18 is 2, then a = … - Lemonade
During a contest, Karlo drank 1 3/4 liters of lemonade, and Ralph drank 1 ½ liter. Who drank more lemonade, and by how much?
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