Time + reason - practice problems - page 15 of 19
Number of problems found: 367
- Hiker and cyclist
At 7 PM hiker started at 6 km/h to hike. After three hrs. later started on the same trip cyclist at a speed of 15 km/h. After an hour of driving a flat tire and takes him half hour to correct the defect. At what time catch up cyclist with the hiker? - Keyboards keys
Michael had small keys on the shelf, which you can see in the picture. Their tones were marked on the white keys. Little Clara found the keys. As she took them off the shelf, they fell out of her hand, and all the white keys spilled out. So that the broth - Determine 2250
The day number is the serial number of the day in the relevant month (i.e., the number on 5 August 2016 is 5). The digit sum of the day is the sum of the values of all digits on the date of that day (i.e., the digit sum on 5 August 2016 is 5 + 8 + 2 + 0 - Grandmother's clocks
Grandmother's clock is late every hour by half a minute. Grandmother set the clock exactly at 8.00 am. How many hours will show after 24 hours?
- Number train
The numbers 1,2,3,4,5,6,7,8 and 9 traveled by train. The train had three cars, and each was carrying just three numbers. No. 1 rode in the first carriage, and in the last were all odd numbers. The conductor calculated the sum of the numbers in the first, - Christmas Day
In leap years was 53 Sundays. On what day of the week fell Christmas Day? - Disease
Farmers'cooperative had a supply of feed for 50 cows for six days. Cows got insidious disease after four days. Ten of them died. How many total days that farmers had feed cows? - Pupils
Four pupils are going via the dark hall. Start at one side and have to get to the other side for 17 minutes. They have only one lamp for the trip. The corridor is narrow. They can go up two pupils at a time and at a slower speed. Each pupil went different - Three siblings
Three siblings have a birthday in one day-today. Together they have 35 years today. The youngest is three years younger than the middle, and the oldest is five years older than the middle. How old is each?
- Daddy
Daddy is a 46-year-old, and his son is at the age of 16. When (which year) was/will daddy five times more years than his son? - Friends
Five mates traveled, and the journey lasted 195 minutes. How long would travel only one of them? - Television
When we add to the difference between the numbers 1704 and 654 and the difference between numbers 14920 and 14042, we get a year in which television was invented. How many years have people known TV? - Clock
What distance will pass the end of 8 cm long hour hand for 15 minutes? - Borrowed book
Jane must, as soon as possible, return a borrowed book. She figured that reading 15 pages a day return the book in time. Then she read 18 pages a day and then returned the book one day before. How many pages should a book have?
- Scouts
Three scouts went on a three-day trip. On the second day went 4 km more than the first day. The third day went two times less than the first day. They went along 54 km. How many kilometers went every day together? - Clocks
What distance will describe the tip of a minute hand 6 cm long for 20 minutes when we know the starting position with finally enclosed hands each other 120°? - Jane and Miro
Jane's brother Miro is 42 years. And he is three times old as was Jane when Miro was for so many years as there are now Jane. How old is Jane? - Floating floor
In the new building is considered a floating floor worker in each room. Thirty minutes lay 9 m² of the floor. How long did three workers lay the floor in 4 rooms with a total area of 90 m²? - Miraculous tree
The miraculous tree grows so fast that the first day increases its height by half the total height of the second day by the third, the third day by a quarter, etc. How many times will it increase its height after 6 days?
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