Number of problems found: 747
- Created trio
What is the probability that in the created trio, which consists of 19 boys and 12 girls, they will be: a) the boys themselves b) the girls themselves c) 2 boys and 1 girl?
- Concert ticket
Noah wants to save $60 so that he can purchase a concert ticket. If he has saved $45 so far, what percentage of his goal has he saved? What percentage remains?
The pharmacist had a 12 l vessel herbal lotion, which contained a 30% active ingredient. Her assistant poured 18 liters of herbal lotion containing 45% of the active ingredient into a container. What percentage of herbal lotion was produced?
- Suppose 3
Suppose that a couple invested Php 50 000 in an account when their child was born, to prepare for the child's college education. If the average interest rate is 4.4% compounded annually, a, Give an exponential model for the situation b, Will the money be
- The price
The price of the calculator gradually decreased. From 65 euros to 30 euros, then to 10 euros and finally to 4 euros. What percentage were the individual reductions? What percentage of the original price was reduced by a total of?
- The encore
The rock band had a 15-minute encore at their concert, which accounted for 12% of the total length of the concert. What was the total length of the concert?
- The golf
The golf ball with a diameter of 43 mm is packed in a cube-shaped box. What percentage of the box volume is made up of a ball?
- Metal washers
Metal washers with a diameter of 80 mm are cut from a strip of steel sheet with a width of 10 cm and a length of 2 m. Calculate the percentage of material waste if no material is lost when two adjacent circles meet.
- Tennis racket
Tennis racket became cheaper by 16% in winter. In the spring, the price increased by 15%. After this increase, it cost € 38. How much did the rocket cost in the winter before cheapening?
- The grocery store
The grocery store earned € 15450 in the first week. In the second € 18630. What percentage did sales increase in the second week compared to the first week?
Determine the salary of a part-time worker if the employer deducted (taxes etc) CZK 840 from him, which was 6/50 of his salary.
- The town
The town population is 56000. It is decreasing by 2% every year. What will be the population of the town after 13 years?
- Class enrollment
A grade 6 class went on a field trip only 98% or 49 pupils joined the activity. What was the class enrollment?
- Social Security Administration
In January 2012, the Social Security Administration increased benefits to its recipients for the first time since 2009. Before the increase, James received $1200/month. After the increase, he received $1243.20/month. Find the percent increase in Social Se
What is the decimal multiplier to increase by 6.1%?
- In the 14
In the survey, the barangay had a certain number of families, and 60% of them are identified and belong to the marginalized sector's poor if the total families are 150. How many families belong to the poor sector?
- Online purchase
A ticket for a school performance costs 95 euros. If the ticket is purchased online, there is a discount of 4%. What is the total price of a ticket purchased online?
- Fish population
The number of fish in a lake decreased by 10% during period of one year. Last year there were 500 fish in the lake. What is the fish population this year?
Megapizza will be divided among 100 people. First gets 1%, 2nd 2% of the remainder, 3rd 3% of the remainder, etc. Last 100th 100% of the remainder. Which person got the biggest portion?
- Mr. Brown
Mr. Brown invested 15,000 euros in the bank for an annual term deposit. After the first year, he gained 600 euros. What was the annual interest rate of his deposit?
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