Multiplication - examples - page 11
- Right triangle
Right triangle legs has lengths 630 mm and 411 dm. Calculate the area of this triangle.
- Digits of age
The product of the digits of Andrew age as 6 years ago and not equal to 0. Andrew age is also the smallest possible age with this two conditions. After how many years will be the product of the digits of Andrew age again the same as today?
Athletes standing in rows of eight. Ivan estimated that athletes are more than 120. Peter claimed that there are fewer than 130. Both are right. How many are athletes?
Fill in the examples correctly brackets: A) 7.9+12:3-2 =23 B) 7.9+12:3-2=75
- Wood bars
It is 9 bars 14 meters long and 9 bars 11 meters long. How many 5-meter lath is needed to make them?
- Cake fractions
Thomas ate 1/3 of cake, Bohouš of the rest of the cake ate 2/5. What fraction of cake left over for others?
The division of numbers 18 and 6 increase by product of the numbers 156 and 0.001
John read the book so that it read 30 pages per day. Maxim read 34 pages a day and read it two days earlier than John. How many pages has the book?
- Mr. Vojta
Mr. Vojta put in the bank 35000 Kč.After a year bank him credited with interest rate of 2% of the deposit amount. How then will Mr. Vojta in the bank?
Joseph had one pair of sandals, one pair of hiking shoes, 1 pair of botas, one pair of church shoes. How many pieces of shoes had together?
- Money borrow
Ms. Kate wants to borrow € 2,000. The company A will borrow ten installments of 240 euros and the first two months does not pay anything. Company B it their position in 12 installments of € 210. Which company has the more favorable interest rate for Ms. K
- Master and apprentice
Master painted the roof in 3 hours and apprentice for 4 hours. How many of roof they painted in hour and how many in three quarters of an hour?
- Juice box
In the box is 0.3 liters of juice. How many liters of juice contains 3 these boxes?
What number I think? The third is 6 and half is 2 more than the its quarter.
Bookshelve with an original price of € 200 twice become cheaper. After the second discounted by 15% the price was € 149.60. Determine how much % become cheaper for the first time.
- Football league
In the football league is 16 teams. How many different sequence of results may occur at the end of the competition?
- Gp - 80
Sum of the first four members of a geometric progression is 80. Determine they if we know that the fourth member is nine times greater than the second.
- Unknown number 2
I think the number. When he reduces it four times, I'll get 11. What number am I thinking?
1 t of sea water contains 25 kg of salt. How many tons of seawater must be evaporated to obtain 2 q of salt?
- 3 years savings
Simple interest - Tereza has deposited CZK 100,000 in the bank with an annual interest rate of 1.5%. Interest is added each year and left aside. How many CZK crowns will has total after 3 years?