Examples for secondary school students - page 40 of 212
Number of problems found: 4231
- Cars plates
How many different license plates can a country have since they use 3 letters followed by 3 digits? - Area codes
How many 6 digit area codes are possible if the first number can't be zero? - Power
Number left(sqrt(14 * sqrt[ 4 ] (14)) right) 17 can be written in the form 14^x. Find the value of x. - Guests
How many ways can 8 guests sit down on 10 seats standing in a row? - Cube - angles
Calculate the angle between the wall diagonal and cube base. Calculate the angle between the cube body diagonal and the cube base. - 75th percentile (quartille Q3)
Find 75th percentile for 30,42,42,46,46,46,50,50,54 - Trapezoid 2520
Trapezoid with sides a = 10, b = 20, c = 25, d = 15. Calculate all internal angles. - Boiler 82273
The ship and boiler are 49 years old. The ship is twice as old as the boiler was when the ship was as old as the boiler is now. How old is the ship? - Determine 82034
The vectors a = (3, -2), b = (-1, 5) are given. Determine the vector c for which a. c = 17; c = 3 - Arithmetic 81811
In which arithmetic sequence is the sum of the first five terms with odd indices equal to 85 and the sum of the first five terms with even indices equal to 100? - Determine 81794
Determine the quotient of the geometric sequence with the first term a1=36 so that s2 is less than or equal to 252. - At week
At week 3., the turtle was 5.45 centimeters long. At week 12, the turtle was 10.20 centimeters long. From week 12 to week 21, the turtle grew 0.5 centimeters less than it grew from week 3 to week 12. What was the length in centimeters of the turtle at wee - Euros 80767
Adam had 3 times more than Fero. Gabo is 11 less than Fero. They had a total of 59 euros. How much did each have? - Probability 80560
I have 3 sources, and their failure probability is 0.1. Calculate the probability that: a) none will have a malfunction b) 1 will have a breakdown c) at least 1 will have a fault d) they will all have a breakdown - Variations 70724
If we increase the number of elements by 2, the number of variations of the second class without repetition increases by 22. How many elements do we have initially? - Including 70264
A group of six, including at least three women, is selected from seven men and four women. Find how many ways we can do this. - Instantaneous 69064
Describe how the instantaneous power value in the AC circuit changes during one period. - Raspberries 66824
Klára wants to make a fruit cocktail from three types of fruit. It has pineapple, pears, bananas, raspberries, and cherries. How many different cocktails can he create? - Geometric 61524
Determine the first term and quotient in the geometric sequence: a4 = -8 / 3; a6 = -32 / 3 - Sapphires 45461
The jeweler selects three gems in the ring. It has rubies, emeralds, and sapphires. How many choices does it have?
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