Maths practice for 14 year olds - page 232 of 361
Number of problems found: 7217
- Isosceles
Isosceles trapezium ABCD ABC = 12 angle ABC = 40 ° b=6. Calculate the circumference and area. - The small
The small hand of the wall clock is 15 cm long, which is what a long journey the end of the hour hand in 15 minutes will describe. (b - in 2 hours)? - Two-Digit Numbers Odd Probability
Jano created 2-digit numbers from the cards 2, 4, 5, 9, and 2. What probability will a randomly generated number be odd? - Sweater
Dana confuses me by stating that sweaters and wool have a choice of seven colors. How many ways can she choose from three colors for the sleeves? - No smoke
Tobacco company NO-SMOKE adorned its stand at the cigarette-type trade fair with cigarette-shaped. The dimensions of which were 20 times the size of a regular cigarette. Regular cigarette contains 0.8 mg of nicotine. How much nicotine would a giant cigare - Three sides
Side b is 2 cm longer than side c, side a is 9 cm shorter than side b. The triangle circumference is 40 cm. Find the length of sides a, b, and c. - Ladder Length Wall Distance
A ladder leans against the wall. It touches the wall at the height of 240 cm. Its lower end is 100 cm distant from the wall. How long is the ladder? - Hectoliters
If a garden barrel with a 90 cm diameter and a height of 1.3 m is filled to 80% of its capacity, how many hectoliters of water is in it? - Double ladder
The double ladder is 8.5 m long. It is built so that its lower ends are 3.5 meters apart. How high does the upper end of the ladder reach? - Book Pages from Fractions
The boy read the book in 4 days. He read a third of the book on the first day and a sixth of the book on the second. On the third day, a quarter of the book was. He was left with 30 pages on the last day. How many pages did the book have? - Tropical, mild and arctic
How many percent of the Earth's surface lies in the tropical, mild, and arctic ranges? The border between the ranges is the parallel 23°27' and 66°33'. - Lunch
Seven classmates go every day for lunch. If they always come to the front in a different order, will it be enough school year to take off all the possibilities? - Cube into sphere
The cube has brushed a sphere as large as possible. Determine how much percent the waste was. - Ticket Sales Three Days
The museum sold seven thousand tickets in 3 days. We know that the second day sold 20% more tickets than the first day, and Day 3 sold 10% less than Day 2. How many tickets were sold on each day? - Digit sum
How many are three-digit numbers that have a digit sum of 6? - Hemispherical hollow
The vessel's hemispherical hollow is filled with water to a height of 10 cm =. How many liters of water are inside if the hollow's inside diameter is d = 28cm? - Two rectangles
I cut out two rectangles with 54 cm² and 90 cm². Their sides are expressed in whole centimeters. If I put these rectangles together, I get a rectangle with an area of 144 cm². What dimensions can this large rectangle have? Write all options. Explain your - Tea Blend Mixture
A merchant sells a blend of two types of tea at 450 CZK per kilogram. One type costs 900 CZK/kg, and the cheaper type costs 369 CZK/kg. How much of each type is needed for 5 kg of the blend? - CuSO4 mixture
How many grams of solid CuSO₄ must be added to 450 g of a 15% CuSO₄ solution to produce a 25% solution? - The big clock
The hands of a clock stop at a random moment. What is the probability that: a) the hour hand shows a time between 1:00 and 3:00? b) the minute hand is in the same region as the hour hand as described in part a)? c) the clock shows a time between 21:00 and
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