Functions - math problems
Number of problems found: 2563
Three people pick strawberries from 48 rows in 8 hours. How many hours do five people need to pick strawberries from 20 rows?
- Three animals
Ramrao bought a cow, a buffalo and an ox for a total of rs 85,000. if the ratio of price of cow, buffalo and ox is 4: 8: 5, then what is the price of ox?
- The bricklayer
The bricklayer built a six-meter base of the fence in 3 hours. How long does it take to build a 14 m long base?
- Salt solution
Calculate the weight of a 50% salt solution that we prepare from 120 g of salt.
- The vaccination
The vaccination coverage of the population is 80%. Unvaccinated make up 60% of all infected. What percentage are unvaccinated more likely to be infected?
- When 5
When 5 is subtracted from both my numerator and denominator I become 3/4. What fraction i am?
- Athletics team
All athletes in the athletics team from Ostrava can start in four, five, six and seven stages, and no one will be present. How many average athletes are in one athletic group if there are a total of twelve groups in the section? Consider the smallest numb
If you were charged $243 in taxes on a $4,050 purchase, what percent tax were you charged?
- Sale goods
Sale goods were reduced twice. First by 15% and then by another 20% of the new price. What percentage of the original price was the final price?
- The product 2
The product of two functions is 10. If one of them is 2 1/3, find the other one.
- Multiplicative inverse
Explain why the reciprocal of - 1 1/17 is the multiplicative inverse of - 17/18.
- Insurance 2
A house that is valued at 255,000 euros has been insured for 224,000 euro. At what percent has it been insured?
- A frequency
A frequency table of grades has five classes (A, B, C, D, F) with frequencies of and 2,14,13,8 and 1 respectively. Using percentages, what are the relative frequencies of the five classes?
- Regular price
The sale price of a television set is 7200. The discount rate is 40%. Find its regular price.
- The average 4
The average cost price of a car in Ireland is now €26,430 excluding VAT. If VAT is 23% calculate the actual selling price of a car in 2021.
- Railways 3
Railway Corporation wants to purchase a new machine for $360,000. Management predicts that the machine can produce sales of $220,000 each year for the next 5 years. Expenses are expected to include direct materials, direct labor, and factory overhead (exc
- Conjugate equation
Find the numbers of a and b, if (a - bi) (3 + 5i) is the Conjugate of (-6 - 24i)
- A perimeter
A perimeter of a parallelogram is 2.8 meters. The length of one of its sides is equal to one-seventh of the entire perimeter. Find lengths of the sides of the parallelogram.
- An aircraft
An aircraft manufacturing company has submitted bids on two separate airline contracts, A and B. The company feels that it has a 70% chance of winning contract A and a 25% chance of winning contract B. Furthermore, it believes that winning contract A is i
- The ratio 4
The ratio of two number is 5:4 if 40% of the first number is 12, what will be 50% of the second number?