Numbers - math word problems - page 301 of 307
Number of problems found: 6127
- Middle number puzzle
In the middle between the unknown number and the number 166 is the number a) 164, b) 200, c) 500 d) 1356 What are the unknown numbers? - Chocolates
In the market, we have 3 kinds of chocolates. How many ways can we buy 8 chocolates? - Guests - party
There are 13 guests at a party. They clink their wine glasses with each other. How many clinks will we hear in total? - Each with each
Five pupils from the 3A class played table tennis. How many matches did they play with each other? - House numbering
The residential house has three entrances, numbered even numbers, successively immediately behind. The sum of the two numbers on the outside entrances is 68. Calculate the middle of these three numbers. - Three number average
Look for three numbers with an average of 2000. The middle number is 2000 - Prism dimensions
We will double one block dimension and reduce the other by a third. How does its volume change? - Six-digit primes Find all six-digit prime numbers that contain each one of digits 1,2,4,5,7, and 8 just once. How many are there?
- Events
Event W has the probability of 0.57. What is the probability that the event W occurs in 2, 6, 5 try? - AM of three numbers
The number 2010 can be written as the sum of 3 consecutive natural numbers. Determine the arithmetic mean of these numbers. - Positive integers
Several positive integers are written on the paper. Michaella only remembered that each number was half the sum of all the other numbers. How many numbers could be written on paper? - Random variable distribution
The distribution of the random variable X is given in the following table. Calculate P[X is odd], E[X] and P[1<X≤6] Probability distribution table: xi; 1; 2; 3 ; 4; 5; 6; 7; 8; 9 pi; 0.30; 0.12; 0.18; 0.10; 0.07; 0.07; 0.06; 0.05; 0.05 - Report card
Ivor hit 4× grade 5 at the beginning of the school year. How many times must you now catch grade 1 to get grade 2 on the report card? - Cornbreads
If four and a half teaspoons of baking powder are needed to make ten servings of cornbread, how many teaspoons are needed to make 25 servings? - Smallest z9
Find the smallest positive numbers a and b for which 7a³ = 11b⁵ - Inequality proof
Let a, b, and c be positive real numbers whose sum is 3, each of which is at most 2. Prove that the inequality holds: a2 + b2 + c2 + 3abc - Digit sum MO Z9-I-4
Determine whether it is possible to add a single-digit number to the number with the digit sum of 2024 so that the resulting number has the digit sum of 74. - Product 3DN How many three-digit numbers are there whose product of digits is 5?
- Box cardboard material
The closed box has the shape of a perpendicular prism with the base of an equilateral triangle. The edge of the base is 24 cm long, and the height of the box is 0.5 m. Calculate how many square meters of cardboard are needed to make 20 such boxes, assumin - Floor
The room's floor area is 33 m2, and its width is 4 m. How many centimeters of circumference was measured on the floor on the map at the scale 1:75?
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