Basic functions - math word problems
Number of problems found: 2267
Determine the resultant of two perpendicular forces F1 = 560 N and second force of 25% smaller.
Three copiers will do the same in an hour k copies. How many copies would be done in an hour by four such copiers? ?
- Find the sum
Find the sum of all natural numbers from 1 and 100, which are divisible by 2 or 5
- 1.5 divided
1.5 divided by 1 = w divided by 4
- Square sides
If the square side increases by 28%, the square circumference increases by 11.2 meters. Find the length of the original square side.
- Three workshops
One workshop can complete the task in 48 days, the second in 30 days and the third in 20 days. In how many days would the task be completed if all workshops worked?
There are 20 peaches in the pocket. 3 peaches are rotten. What is the probability that one of the randomly picked two peaches will be just one rotten?
From wooden block carpenter cut off a small cuboid block with half the edge length. How many percent of wood he cut off?
The sum of two numbers is 32, the sum of their logarithms (base 10) is 2.2. Determine these numbers.
- Half life
Determine the half life of bismuth, when bismuth weight from the original weight of 32 g was only 2 grams in 242 minutes.
- Pages counting
There are pages numbered from 2 to 104 in the book. How many digits have to be printed to number the pages?
A camera has a listed price of $751.98 before tax. If the sales tax rate is 9.25%, find the total cost of the camera with sales tax included.
Dano had 20 raspberries. John had 90% more raspberries than Dano. Determine how many raspberries have Dano and Juraj together.
- Savings and retirement
The older sibling has saved 44% more euros than the youngest, which represents 22 euros. How many euros older brother has saved ?
- Birthday paradox
How large must the group of people be so that the probability that two people have a birthday on the same day of the year is greater than 90%?
Weightlifter lifted 75% of its weight. Determine how much weight lifted when he weighs 132 kg.
The school stands 110 m from the church, which is 100 m beyond the town hall. Which building are closer to the church and how many times?
- Three friends
The three friends spent 600 KC in a teahouse. Thomas paid twice as much as Paul. Paul a half less than Zdeněk. How many each paid?
We will throw two dice. What is the probability that the ratio between numbers on first and second dice will be 1:2?
Internal angles of rhombus is in ratio 2:3. How many times is the shorter diagonal longer than side of rhombus?