Numbers - math word problems - page 280 of 312
Number of problems found: 6223
- The fence
I'm building a cloth (board) fence. The boards are rounded in a semicircle at the top. The tops of the boards between the columns should copy an imaginary circle. The tip of the first and last board forms the chord of a circle whose radius is unknown. The - Number arithmetic mean
A set of numbers 5,8,13,15,17,19 is given. What number should be added so that the arithmetic mean is 16? - Number sum
The sum of three natural numbers, five greater than the previous one, is 204. What are the numbers? - Equation - inverse
Solve for x: 7: x = 14:1000 - Hectoliters of water
There are 942 hectoliters of water in a cylindrical tank with an inner diameter of 6 m. The water reaches two-thirds of the tank's depth. Calculate its depth. - Cards 5
A thing into which you throw a coin and you can then look through it like through a telescope, contains an entire set of 81 Set cards. How many valid sets exist that contain at least one blue card? Sets is a card game. Each Set card has 4 properties: colo - Increase the mean
To which number should the number 4 be changed between the numbers 4,5,7, 1,0,9,7,8, -3,5 to increase these numbers' arithmetic mean by 1.25? - Numbers
Find a number on the number line that has the same distance from these numbers: - AP members
Insert as many arithmetic sequence members between numbers 1 and 53 that the sum is 702. - The sum
The sum of the first ten members of the arithmetic sequence is 120. What will be the sum if the difference is reduced by 2? - Divide in ratio
Line segment AB is 12 cm long, divided in a ratio of 5:3. How long are the individual parts? - Arithmetic mean sixth
The arithmetic mean of the six numbers is precisely 9.5. The sum of these five numbers is 56.9. The sixth number is? - Resistors
Two resistors connected in parallel give a combined resistance of $R1 Ω, and connected in series give a combined resistance of $R2 Ω. Determine the resistance of each resistor. - Segment ratio reduction
If I reduce a segment of length 72 cm in a ratio of 5:8, it will have a length of x cm. Calculate x. - Single-colored
Diana is going to a party. She can't decide what to wear. She has 4 T-shirts (white, blue, pink, and purple) and 5 skirts (black, white, pink, green, and brown) to choose from. In how many different ways can she combine a T-shirt and a skirt if she doesn' - Monty Hall
Suppose you're on a game show and have the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say No. 1, and the host, who knows what's behind the doors, opens another door, say No. 3, which has a goat. What is the - AP of two numbers
The arithmetic mean of two numbers is 142, one of the numbers is 16 more than the second. Find both numbers. The arithmetic mean is (a+b)/2 - Average
The arithmetic mean of two numbers is -79.1. One number is -49. Calculate the second number. - Filling the pool
How many liters of water must be poured into a pool 25 m long, 800 cm wide, and 20 m deep? The pool should be filled to 3/4 of its depth. How many euros will you pay for pool tiling, and a square meter of tiling costs 20 euros? - Sequence decreasing proof
Prove that the sequence {3 - 4. n} from n = 1 to ∞ is decreasing.
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