Reasoning - practice problems - page 6 of 88
Number of problems found: 1753
- Teeth
An adult has a total of 32 permanent teeth. How many of them are molars if 1/4 of the teeth are incisors, another quarter are molars, and the remaining quarter are canines? - Average 110
The average of five numbers is 1.3. What is their sum? What is the arithmetic mean of the numbers 0.04, 0.014, and 0.21? The arithmetic mean of four decimal numbers is 2.5. Three of these numbers are 1.8, 0.65, and 3.1. What is the fourth number? - Buses 7
Two bus lines leave the bus stop according to the following schedule: A) at 8:00, every 6 minutes until 23:00 B) at 8:00, every 14 minutes until 23:00 How many times will buses of both lines leave the bus stop simultaneously between 8:01 and 20:00? - Cinema visitors
There are 35 seats in each row of an open-air cinema. Determine the maximum number of visitors that can fit in the viewing area, given that the total number of seats is more than 705 and fewer than 740. - Green cards
We draw 4 cards from a deck of 32 cards. In how many ways can we draw: a) exactly 2 aces, b) exactly 3 green cards? - In the shipment
There are 40 products in a shipment, of which 4 are defective. In how many ways can 5 products be selected so that exactly 3 of them are non-defective? - February sales
A company earned only four fifths in February of what it earned in January. By what percentage did the company earn more in January than in February? - Children - dividing
What is the minimum number of nuts needed to be able to divide them equally among 10, 12, and 18 children? - Hockey - game
A hockey goalkeeper has a save success rate of 93.5%. What is the probability that he keeps a clean sheet in a match when facing 25 shots? What is the probability that he concedes at most 2 goals? - Four-digit number
George is thinking of a four-digit number and gives us the following clues: a) Its digit sum equals one hundredth of the number obtained by rounding the mystery number to the nearest hundred. b) Its last digit is 1 more than the second-to-last digit. c) T - MO Z7 2025
Adela and Susan ate plums. On the first day, Adela ate three quarters of what Susan ate that day. On the second day, Susan ate three halves of what Adela ate that day. Together, they ate 31 plums over the two days, and each girl ate a whole number of plum - Table - tablecloth
Mrs. Vránová has a square table with a side length of 110 cm. She wants to have a square tablecloth made for it so that each corner extends 25 cm beyond the edge of the table. What dimensions should the tablecloth have? - Create 2
Create a suitable table and fill in the data: Producing four machines takes a total of 80 hours. Each machine takes the same amount of time to produce. How long does it take to produce 1 machine, 2 machines, and 5 machines? - Six-digit number
Pepina was rolling a dice. The first number that came up, she wrote on a paper, the second she wrote to the right next to the first, the third she wrote to the right next to the second, etc., until after six rolls she had a six-digit number written. a) Wh - Left-handed
There are 100 people in a room, 99% of whom are left-handed. How many left-handed people must leave the room to reduce this proportion to 98%? - Thinking unknown n I am thinking of a number. If I subtract 14 from it and multiply the result by 6, I get 210. What is the number?
- Adding Sixths to Thirds
How many sixths must be added to two thirds to get four quarters? - Tank 28
A tank fills in 120 hours. When drained for irrigation, it empties in 10 days. How long will it take to fill if filling and draining occur simultaneously? - Consolidation expensiveness
Calculate how much the same shopping of 100 EUR will cost in 2025, if in 2024 VAT is 20% and in 2025 it will be as much as 23%. Assume that all goods in the shopping are charged with the same, basic VAT rate. PS. VAT was temporarily raised from 19% to 20% - Divisible PIN
Mark's mother helped him with his shopping. She wanted to pay by card when collecting the goods in person, but she was not sure what her PIN was. Could her PIN be a number divisible by six?
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