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- Two doctors
Doctor A will determine the correct diagnosis with a probability 93% and doctor B with a probability 79%. Calculate probability of correct diagnosis if patient is diagnosed by both doctors.
- Area of RT
Calculate the area of a right triangle that hypotenuse has length 14, and one hypotenuse segment has length 5.
The cube has area of base 256 mm2. Calculate the edge length, volume and area of its surface.
Compare with characters >, <, =: 85.57 ? 80.83
- Trapezoid MO
The rectangular trapezoid ABCD with right angle at point B, |AC| = 12, |CD| = 8, diagonals are perpendicular to each other. Calculate the perimeter and area of the trapezoid.
- Climb in percentage
The height difference between points A and B is 475 m. Calculate the percentage of route climbing if the horizontal distance places A, B is 7.4 km.
Father dig up the garden in 9 hours. Son in 13 hours. How many hours take dig up the garden together?
- Percent calculation
Calculate 61% if 85% is 38.
- No. of divisors
How many different divisors have number ??
Allen save € 2860 to buy a car. Yet it lacks save 55% of the car price. How much is the car?
Trunk diameter is 52 cm. Is it possible to inscribe a square prism with side 36 cm?
Workers A and B will done work together for 15 days. They worked together 13.5 days. Then A worker became ill and worker B finish the job alone for 7.5 days. If every worker was working alone, how many days took whole work for worker A and B?
Area of a square garden is 6/4 of triangle garden with sides 56 m, 35 m, and 35 m. How many meters of fencing need to fence a square garden?
In the box are 8 white, 4 blue and 2 red components. What is the probability that we pull one white, one blue and one red component without returning?
Between cities A and B is route 13 km long of stúpanie average 7‰. Calculate the height difference of cities A and B.
In the camp are children. 1/2 went on a trip, 1/4 went to bathe and 38 children remained in the room. How many children are in camp?
- Painter Pavel
Painter Pavel painted the fence for 16 hours and painter Petr the same fence painted for 13 h. How long should take painted the fence together?
You want to cut long board into smaller pieces. Carpenter said that one cut of the board into two pieces will cost you 70 cents. But you need to cut the board into 9 parts. How much you pay?
Increasing the minimum wage while maintaining the other parameters of the system, unemployment will be:
- One sixth
How many sixths are two thirds?