Basic functions - math word problems
Number of problems found: 2267
- Extreme temperatures
USA hit extreme heat wave. Calculate percentage of the air temperature change from normal summer temperature 23 °C to 40 °C.
1000$ is invested at 10% compound interest. What factor is the capital multiplied by each year? How much will be there after n=12 years?
- Magnitude of angle
What magnitude has an obtuse angle enclosed by the hands of clocks at 12:20 hours?
- Isosceles triangle
What are the angles of an isosceles triangle ABC if its base is long a=5 m and has an arm b=4 m.
What number should be placed instead of the asterisk in number 702*8 to get a number divisible by 6?
Divide a regular hexagon into lines into nine completely identical parts; none of them must be in a mirror image (individual parts can only be rotated arbitrarily).
If 2*3 = 60 ; 3*4 = 120 and 4*5 = 200, what is 2*5?
How much percent has changed (reduced) area of pipe cross-section, if circular shape changed to square with same perimeter?
- Electrics - conductor
The wire is 106 meters long at 0 °C and at every temperature increase of 1 °C the length increases by 0.15 mm per 1 m length of wire. Determine a function which represents the overall length of the wire as a function of temperature. What is the length of
- Dividing money
Jane and Silvia are to divide 1200 euros in a ratio of 19:11. How many euros does the Jane have?
Peter and Franta threw to the basket. Each had 20 attempts. Peter scored thirteen and twelve Franta. Give them success in percentage.
- Win in raffle
The raffle tickets were sold 200, 5 of which were winning. What is the probability that Peter, who bought one ticket will win?
How many 50-cent coins must be put in a row that next 50-cent coins after them (above) rolled on it axis?
- Unknown numbers
The sum of two consecutive natural numbers and their triple is 92. Find these numbers.
Two hours 24 students harvested chestnuts on 36 acres. How many square meters harvested one student per hour?
- Salary increase
Ms. Merry's salary increased by 15%, and that was 83 euros. What should pay before the increase?
- Apples 2
James has 13 apples. He has 30 percent more apples than Sam. How many apples has Sam?
- Three colors
Find the probability that 3 balls of the same color will be drawn from fate with 10 white, 10 red, and 10 blue balls.
- Age ratio
Janko is 14 years old. The age ratio of Janka and Zuzka is 2: 3. What was the ratio seven years ago?
- Hens and pigs
Hens and pigs have 46 feet in total. At least how much can heads have?