Time - 6th grade (11y) - examples
- Three cats
If three cats eat three mice in three minutes, after which time 270 cats eat 270 mice?
A cyclist passes 88 km in 4 hours. How many kilometers he pass in 8 hours?
Two workers would make installation of greenhouses for 54 hours. For how many hours does the installation 9 workers?
Cyclist goes on a trip. First, drove 3 hours average speed 42 kilometers per hour, then slowed down and another 2 hours driving a speed 39 kilometers per hour. How many total kilometers cycling?
Write time in minutes rounded to one decimal place: 1 h 42 m 22 s.
Monkey fell in 31 m deep well. Every day her scramble 3 meters, at night dropped back by 2 m. On that day it gets hangover from the well?
Regional Building Authority has an annual budget of EUR 1895050. In previous calendar year has processed 834 approval procedures. How much does an average of one building approval costs (eg unsuccessful revoke)?
If an airplane flies 730 km/h for 2.2 h, how far does it travel?
Father dig up the garden in 13 hours. Son in 18 hours. How many hours take dig up the garden together?
Mr. Radoslav calculated that excavation for a water connection dig for 10 days. His friend would take 7 days. Radoslav worked 3 days alone. Then his friend came to help and started on the other end. On what day since the beginning of excavation they met?
The tale of the Seven Ravens were seven brothers, each of whom was born exactly 1.5 years after the previous one. When the eldest of the brothers was 4-times older than the youngest, mother all curse. How old was seven ravens brothers when their mother cur
Mailbox is opening at regular intervals 3 times a day. The first time is opened at 6:00 and the last at 16:00. Calculate hours when mailbox is opened during day.
- Minute angle
Determine size of angle, which takes minute hand for 90 minutes.
- Minute hand v2
In how many minutes describe the minute hand angle 60 degrees?
- Forestry workers
In the forest is employed 63 laborers planting trees in nurseries. For 11 hour work day would end job in 43 days. After 14 days, 22 laborers go forth. How many days is needed to complete a planting trees in nurseries by others, if they will work 15 hours
Hiker went half of trip the first day, the third of trip the second day and remaines 13 km. How long trip he planned?
- Working time - shortening
The media often speculates about the change (especially to shorten) the working time of the five-day eight-hour working week to another working model. Calculate how many hours a day the employee would have to work a day at 7-day work week if he must work t
- Pumps 3
Two pumps of the same power fill the garden pool for 10 hours. How many of these pumps would have to use if we want to shorten the filling of the pool to four hours?
6 pump fills the tank for 3 and a half days. How long will fill the tank 7 equally powerful pumps?
- Dog II
Journey from a rangers' home to the town is 12 km. Mr. ranger started from his home and went 6 km per hour. His women came from the town and also went 6 km per hour. With ranger started dog and runs in 11 km in 1 hour. The dog went to ranger's women then