# Equation + rational numbers - math problems

#### Number of problems found: 42

• Factors
Can the expression ? be factored into rational factors?
• Equation 11
Solve equation: ?
• Strange x
For what x is true ??
• Denominator
Calculate the missing denominator x: ?
• Determine the number
Determine the number x that ?.
• Expression
If it is true that ? is:
• A number
A number increased by 7.9 is 8.3
• Server
Calculate how many average minutes a year is a webserver is unavailable, the availability is 99.99%.
• Clock
What time is now, if the time elapsed after noon is 2/10 of time that elapses before midnight?
• Bonus
The gross wage was 1323 USD including 25% bonus. How many USD were bonuses?
• VAT
John paid 1000 Euros in store for purchase. Calculate value added tax (VAT), which paid in purchase, if the VAT rate is 20%.
• Tape
Video is 153% more expensive than tape recorder. How many percent is tape recorder less expensive than video?
• Truck
Truck went for 4 hours and 30 minutes. If truck increase speed by 11 km/h, went same distance in 2 hours. Calculate this distance.
• Drinking water
A man drinks a keg of water in 40 days, and a woman drinks in 62 days. How many days do they consume a keg together?
• Hands
The clock shows 12 hours. After how many minutes will angle between the hour and minute hand 90°? Consider the continuous movement of both hands hours.
• Camp
In the camp are children. 1/2 went on a trip, 1/4 went to bathe and 38 children remained in the room. How many children are in camp?
• Rising price
The book first become more expensive by 5 euros. New price was later increased by 8%. After the second price increase book cost 46 euros. What was the original price of the book?
• Freedom
In the city are 3/9 of women married for 3/6 men. What proportion of the townspeople is free (not married)? Express as a decimal number.
• Acid
The barrel is 199 litres of 38% acid. How many percent acid occurs when 61 litres revoke and replace it with the same amount of water?
• n-gon
Gabo draw n-gon, which angles are consecutive members of an arithmetic sequence. The smallest angle is 70° biggest 170°. How many sides have Gabo's n-gon?

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