Biking

Dhea is biking for 20 mins every day before going to school. She looked at her watch and she already achieved 10 hours of biking. How many days in total did she achieve?

Correct answer:

d =  30

Step-by-step explanation:

$$\begin{gathered} t_1=20\text{ min}\to \text{ h}=20\mathrm{/}60\text{ h}=0.33333\text{ h } \\ t=10\text{ h } \\ d=t\mathrm{/}{t}_1=10\mathrm{/}0.3333=30 \end{gathered}$$

Try another example

Related math problems and questions:

• Day
  What part of the day are 23 hours 22 minutes? Express as a decimal number.
• Time
  16.2 days ..... how many hours is it?
• Delayed clock
  Michael put a new battery into his watch at midnight. However, they are 5 seconds late each minute. How many hours does the watch show in 24 hours?
• Wood
  Peter chops wood. If they cut down a half hours a day he ended work in 9 days. But Peter needs to end work 3 days earlier. How many minutes a day should cut down?
• Cats sleep
  Cats sleep for 11 hours in a 24-hour day. How many hours a day is a cat awake?
• Tablecloth
  I embroider tablecloth in 20 days but if I embroider 3/4 hours a day I have embroider it for 15 days. How long do I embroider a day?
• Forestry workers
  In the forest is employed 56 laborers planting trees in nurseries. For 8 hour work day would end job in 37 days. After 16 days, 9 laborers go forth? How many days are needed to complete planting trees in nurseries by others if they work 10 hours a day?
• Quarter of an hour
  If the clock showed a quarter of an hour more, it would be 10 minutes to 10 hours. How many hours do they show?
• Ingrid
  Ingrid watched television for 2 1/4 hours and Devon watched for 3 2/3 hours. For how many hours did they watch television in total?
• Rope
  Peter has a long rope 2 4/5 meter. Martin has a rope 20 cm longer. What distance ropes achieved if the boys link ropes?
• Illness
  Peter is ill and must take medication three times a day for one tablet. For how many days is a pack of 30 tablets enough for him, when on the third day he takes one tablet only in the morning and evening?
• Speed of car
  In 2 hours 40 mins, a car travels 100km. At what speed is the car traveling?
• Three Titanics
  Three steamers sailed from the same port on the same day. The first came back on the third day, fourth 4th day and the third returned sixth day. How many days after leaving the steamers met again in the harbor?
• Truck
  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?
• Workers
  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
• Hours
  How many hours is 9 days?
• Videotape
  Viera bought a videotape on which you can record programs with a total length of 240 minutes. She recorded a sci-fi movie 1 hour and 28 minutes long, five ten-minute sessions, "aerobics at home." Can she fit on the tape even film of Robin Hood, who takes