Numbers - math word problems - page 268 of 312
Number of problems found: 6223
- Divisible by five
How many different three-digit numbers divisible by five can we create from the digits 2, 4, and 5? We can repeat the digits in the created number. - Triangle perimeter ratio
The PQR triangle with a circumference of 25.5 cm has sides in a ratio of 4:6:5. Determine the lengths of its sides. - Carpet floor area
The carpet covers 8 m² of flooring, which is one-third of the entire floor area. How big is the whole floor? - Triangle Side Lengths Ratio
Triangle with o = 16.8 cm and aspect ratio a:c = 1:2 and b:c = 5:6. Calculate side lengths a =? B =? c =? - Toothpaste usage time
The father would use the toothpaste alone for 15 days, the mother for 12 days, and the daughter for ten days. It was used by all three for three days, then only the father and mother. How many days have they used it since the beginning of its use? - Wheat harvest
One combine harvester harvests a wheat field in 12 hours, and another combine harvester in 16 hours. How long does the same field harvest the third combine harvester alone if all three harvesters harvest the wheat field in 2 hours? - Runners circle
Pepa circles the track in 36 seconds. Kamil in 42 seconds. They started together. How many seconds will we meet again at the start? - Painters
One painter could paint a school for seven days. The second one does it for six days. It was necessary to paint the school in two days. The next painter was invited, and all worked together. How long would this painter paint the school itself? - Aquarium filling
The aquarium, with a length - of 40 cm, width - of 24 cm, and height of 27 cm, is filled to 2/3. How much water do we need to add to be filled to 8/9? - Gold carat calculation
I have a pile of 48 grams of 12-carat gold. How many grams of gold do I have in a pile? - Friends iron average
Five friends compared how much scrap iron they brought to the collection. The average was 55 kg, but John brought only 43 kg. What was the average in kg without John?
- Four-digit code letters
A four-digit code has the letters A, B, and C in the first two places and numbers 1, 2, 3, and 4 in the following two places. How many different codes can be made if we can repeat both letters and numbers in the code? - Two-digit number creation
Find the number of all two-digit numbers created from digits 1, 2, 3, 4, and 5 that are greater than 24. We can repeat numerals. - Anthea
Anthea is running an experiment to examine vaccine shelf life, and she must precisely monitor the temperature. The starting temperature is −116 degrees Celsius (°C). The temperature rises by 35 degrees, then falls by 12 a degree. What is the final tempera - Three Painters School Days
One painter would paint a school by himself in 28 days. The second painter would paint the school by himself in 24 days. They also called a third painter because they needed to paint the school in 8 days. The three of them painted the school together in 8 - Compare distributions
Which would you expect to be larger, the standard deviation of 5 random numbers picked from 1 to 47 in the California Super Lotto (CSL - write 1 as a result), or the standard deviation of 5 random numbers picked from 1 to 69 in the multi-state PowerBall L - Elephant population
In 1979, 1.3 million elephants lived in Africa. By 1989, their number had dropped to 600,000. On average, how many elephants have died each year during this period? - Excavation digging days
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? - Two workers
One worker needs 40 hours to do a job, and the second would do it in 30 hours. They worked together for several hours, then the company recalled the second, and the first completed the job in 5 hours. How many hours did they work together, and how much di - Strawberries
The father collects strawberries himself in 2 hours and the son in 9 hours. How long will it take them to join him when he comes to help his son collect strawberries after 3 hours?
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