Number of problems found: 281
- Sum 1-6
Find the sum of the geometric progression 3, 15, 75,… to six terms.
- Andy had
Andy had $5.95 in his pocket. His father gave him another $3.55. How much does Andy have altogether now?
- The temperature 9
The temperature at 9 a. M. is 2 degrees. The temperature rises 3 more degrees by noon. Which expression describes the temperature at noon? Calculate the new temperature value.
- Temperature rise and fall
On Friday, the temperature was 82°F. The temperature changed by –2°F on Saturday, and then it changed by 5°F on Sunday. What was the temperature on Sunday? How did the temperature change? Note we consider the mathematical problem formulated in this way to
- Insert 4
Insert 3 arithmetic means between 3 and 63.
- Sum of odd numbers
Find the sum of all odd integers from 13 to 781.
- The sum 6
The sum of the 17 different natural numbers is 153. Determine the sum of the two largest ones.
- Extending square garden
Mrs. Petrová's garden had the shape of a square with a side length of 15 m. After its enlargement by 64 m2 (square), it had the shape of a square again. How many meters has the length of each side of the garden been extended?
- At noon
At noon today it was 6°C outside, but it has increased 4°C since then. What is the temperature outside now?
- On the floor
You enter the room and there are 2 dogs, 4 horses, 1 giraffe and one duck on the bed, 3 chickens are flying over the chair. How many feet are on the floor?
- Adding mixed 4
2 and 1 8th plus 1 and 1 3rd =
- Outdoor temperature
The outdoor temperature was 8 degrees at midnight. The temperature declined 5 degrees during each of the next 3 hours. What was the temperature at 3am?
- How many 3
How many hours the Andersons watched TV in all Wednesday 3/1 hr Thursdays 2/3 hr Friday 4/5 hr Saturday 3/4 hr
- Finite arithmetic sequence
How many numbers should be inserted between the numbers 1 and 25 so that all numbers create a finite arithmetic sequence and that the sum of all members of this group is 117?
- Quiz or test
I have a quiz with 20 questions. Each question has 4 multiple choice answers, A, B, C, D. THERE IS NO WAY TO KNOW THE CORRECT ANSWER OF ANY GIVEN QUESTION, but the answers are static, in that if the "correct" answer to #1 = C, then it will always be equal
- My father
My father cut 78 slats on the fence. The shortest of them was 97 cm long, the longer one was 102 cm long. What was the total length of the slats in cm?
Three divisions of nature protectors participated in the collection of chestnut trees.1. the division harvested 1250 kg, the 2nd division by a fifth more than the 1st division and the 3rd division by a sixth more than the second division. How many tons of
- Loaded train
The whole loaded train weighs 360 tons. It has twenty wagons, each carrying 12 tons of grain. What is the weight of the locomotive?
- Outside tangents
Calculate the length of the line segment S1S2 if the circles k1 (S1, 8cm) and k2 (S2,4cm) touch the outside.
- Sum of the seventeen numbers
The sum of the 17 different natural numbers is 154. Determine the sum of the two largest ones.