Multiplication - high school - practice problems - page 21 of 23
Number of problems found: 450
- Gain
Find the gain whenever the output power is 21x the input power. - Observer
The observer sees a straight fence 100 m long in 30° view angle. From one end of the fence is 102 m. How far is it from another end of the fence? - Negative percentage
In 2006, the company had a loss of 11100 Euros. Two years later, he was already in profit 50000 Eur. Calculate what percentage of the company increased profits in these two years. - Drinking water
A man drinks a keg of water in 36 days, and a woman drinks in 65 days. How many days do they consume a keg together?
- Count of triangles
On each side of an ABCD square is 10 internal points. Determine the number of triangles with vertices at these points. - Balls
From the urn in which are 7 white balls and 17 red, gradually drag 3-times without replacement. What is the probability that pulls balls are in order: red red red? - Pairs
At the table sit 10 people, 5 on one side and 5 on the other side. Among them are 3 pairs. Every pair wants to sit opposite each other. How many ways can they sit? - Chocolates
In the market, we have 3 kinds of chocolates. How many ways can we buy 8 chocolates? - Components
The 8 white, 4 blue, and 2 red components are in the box. What is the probability that we pull one white, one blue, and one red component without returning it?
- No. of divisors
How many different divisors have number 13 4 * 2 4? - Bonus
The gross wage was 1323 USD, including the 25% bonus. How many USD were bonuses? - Scrap
From 19 products are 4 scraps. What is the probability that the random pick of 2 products has no defective product? - Toys
3 children pulled 9 different toys from a box. How many ways can toys be divided, so each child has at least one toy? - Hearts
3 cards are chosen from a standard deck of 52 playing cards (13 hearts) with replacements. What is the probability of choosing 3 hearts in a row?
- Pizza
A school survey found that 10 out of 15 students like pizza. If 5 students are chosen randomly, what is the probability that all 5 students like pizza? - Events
Event U has the probability of 0.89. What is the probability that the event U occurs in 4, 2, 8 try? - Discount
The ladies' sweater was twice discounted. First by 8%, then by 8% of the new price. Its final price was 66 €. Determine the original price of the sweater. - Numbers
Determine the number of all positive integers less than 4183444 if each is divisible by 29, 7, 17. What is its sum? - Server
Calculate how many average minutes the web server is unavailable a year if the availability is 99.9%.
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Multiplication practice problems. Examples for secondary school students.