Functions + addition - practice problems - page 9 of 11
Number of problems found: 216
- Octahedron - sum
On each wall of a regular octahedron is written one of the numbers 1, 2, 3, 4, 5, 6, 7, and 8, wherein on different sides are different numbers. John makes the sum of the numbers written on three adjacent walls for each wall. Thus got eight sums, which al - Substituted 4151
Find out what numbers need to be substituted for the letters X, Y, and Z to have the following relation: XZY + XYZ --------- YZX - Abbreviation 4148
From point A to point C, an educational trail passes through point B and a red tourist sign; see the picture. In addition, an undrawn abbreviation 1500 meters long, starting at A and ending on the nature trail, can be used. Vojtech found that • the trip f - Summands
Find two summands of the number 42 so that its product is minimized.
- Consecutive 4122
The sum of four consecutive natural numbers is 90. Determine these numbers. - Three vectors
The three forces whose amplitudes are in ratio 9:10:17 act in the plane at one point to balance. Determine the angles of each two forces. - Raspberries
Dano had 20 raspberries. John had 90% more raspberries than Dano. Find how many raspberries have Dano and Juraj together. - Released 3593
The Harry Potter book was released in the second quarter, and 6,000 copies were sold in this quarter. In the third quarter, it sold 8% more and in the fourth quarter it sold 15% more than in the third quarter. How many Harry Potter books have been sold by - Elevator
The panel house has ten over-ground stories and four underground. The lift goes from the ground floor to the 2nd floor, then down to the 3rd underground floor, nine floors up, and finally four floors down. To what floor does the elevator arrive? How many
- Add symbols
Add marks (+, -, *, /, brackets) to fullfill equations 1 3 6 5 = 10 This math problem is for the 4th grade of primary school - with no negative numbers yet. - Probability 3349
We have natural numbers 3, 4, 6, 10, and 12. Calculate the probability that the sum of three randomly selected three different numbers is less than 20. - Students
In the front row sit three students, and in every other row sit 11 students, more than in the previous row. Determine how many students are in the room when the room is nine lines, and determine how many students are in the seventh row. - Foot in bus
It was 102 people on the bus. Twenty-eight girls had two dogs. Eleven girls had one dog. Five dogs (even with their owners) seceded at the next stop. They got two boys together with three dogs. The bus drove one driver. How many feet were on the bus? - Volume of three cuboids
Calculate the total volume of all cuboids for which the edges' sizes are in a ratio of 1:2:3, and one of the edges has a size of 6 cm.
- Beginning 2879
Juro, Fero, and Mišo played bullets. In the beginning, everyone had the same number. In the first game, Juro won 4 bullets, and Fero 5 (that means Mišo lost nine bullets). In the second game, Mišo won 7 balls, and Fero lost four balls. In the third game, - Triceratops 2868
Triceratops was admitted to the enclosure 10 minutes earlier than Stegosaurus but 6 minutes later than Diplodukos. Diplodukos was the first to leave the enclosure 7 minutes before Stegosaurus and 10 minutes before Triceratops. How many minutes were the Tr - Vegetables 2866
In the store, they had 5 times more cucumbers than carrots, which they had 9 kg. They had 5 times less parsley than cucumber, 7 times more onion than parsley, 27 kilograms less garlic than garlic than onion, and 9 times less broccoli than garlic. How many - Single-digit 2805
Which two single-digit numbers have the sum and product of the same number? - Landlord
The landlord had 49 ducats more than Jurošík. How many ducats Jurošík steal landlord if the Jurošík now five ducats more?
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