Time - 5th grade (10y) - math problems
The twins Nina and Ema have five years younger brother Michal. Together have 43 years. How old is Michal?
- Brother and sister
When I was 8, my sister was 4, now I am 18, how old is my sister?
- Father and sons
Father is 27 and his sons 2 and one year. In how many years will his sons sum up to half his age?
680 liters of water were pumped in 8 minutes. How many liters was spent in 56 minutes?
- Speed of car
In 2 hours 40 mins, a car travels 100km. At what speed is the car traveling?
Three factory operators produced 480 units in 50 minutes. How many hours worked? I'm trying to prove or disapprove the idea that the company tell me that it's 2.5 hours. So what is right? Thank you, Petra
At the beginning of the year, Tomas had saved 230kc, after half a year even 590 CZK. How many crowns did he save each month when saving the same amount?
- A koala
A koala lives to be 14 years old in the wild. How much longer will a 2 year old koala probably live?
Jana rose in the morning in the quarter to seven. She slept nine and a half hours. When did she go to sleep?
- Water tank
In an empty fire tank, 2150 hl of water jetted in 5 hours. How many hectoliters of water was jetted every hour? How many hectoliters of water was in the tank after three hours?
- 3 cats
3 cats eat 3 mice in 3 days. How many mice will eat 10 cats in 10 days?
- April (month)
April has 30 days. Roman saves his money in the box for the whole month. Every third day you saves 10 cents. How many cents did Roman saved during the whole month when start saving on April 1?
- Five mechanics
Five mechanics will make a car for some time. How many cars can 30 mechanics produce at the same time?
The truck passed 4550 km in 5 days. The first three days passed every day the same way. The fourth day passed 630 km and the fifth day was 920 km. How many km has passed the first three days?
- If you
If you travel to work 22 days and it takes 29.2 minutes, how many minutes will it take to travel to work and back?
Friday 13th is in 4 days. What day is today and what day it is?
The lesson lasts 45 minutes. For the week, students have 18 lesson hours. How many are the actual hours?
- Hr to min
Sue biked to school in 5/12 of an hour. How many minutes did it take her to ride to school?
- Time adding
Add and write the result again as hours, minutes, seconds: 2hodiny45min15s + 1h20m50s =
- Three elephants
Three elephants eat three piles of hay in 150 minutes. For how long does 96 elephants eat 96 stacks of hay?