Anna cuts out each letter from the logo below and puts the letters in a box. She takes one letter without looking. What is the probability of getting E?
The bar chart summarizes the heights of all models in a fashion-show selection. Exactly 36 candidates of height at least 175 cm are recruited. How many candidates are 172 cm tall?
Julian uses the calculator shown. Starting from input A, he presses (+), (2), (=), (×), (9), (=), (÷), (6), (−), (2), (=), in that order. Which function describes the process?
The Number 9 bus arrives every 9 minutes and the Number 12 bus every 12 minutes. Both arrive at 9:42. Julian arrives at the stop at 16:00 that day. When will he first see both buses arrive together?
A cricket and an ant travel from A to B. The ant follows the red path on the square grid and travels 56 cm. What is the shortest distance the cricket needs to travel?
Kellie has a rectangular sheet with perimeter 140 cm and width-to-length ratio 3:4. She cuts out two semicircles and rearranges them to form the vase shown. Find its perimeter. Take π = 3.
Anna builds a castle with a pyramid as its roof and a prism as its base, as shown. If the combined solid has 2023 vertices, how many edges does it have?
A pack of 3 English books costs USD 10 and a pack of 5 mathematics books costs USD 20. Books can only be bought in packs. A teacher buys exactly 100 books. What is the least possible cost?
Place 5,10,15,20,25,30,35 in the seven stars so the three straight lines have equal sums. Find the sum of all possible values replacing the question mark.
Harry is trapped at the top of the building shown. He may move down or left into an adjacent room, but cannot enter locked rooms. How many different ways can he escape?
Adrian has a square sheet of area 25 cm². He places a rhombus of area 20 cm² on top so that two sides are coincident. Find the area of the square not covered by the rhombus.
Figure condition: one complete side from each sheet forms the common bottom segment; the rhombus leans right as drawn.