Puzzles
3210
1920
081?
7524
? = 6
(3 + 2) x 2 = 10
(1 + 9) x 2 = 20
(0 + 8) x 2 = 16
(7 + 5) x 2 = 24
-16, -2, 10, 20, 28, 34, 38 what is the next number
40
Betty and Ann are walking around a rectangular park with dimensions 600 m by 400 m, as shown. They both begin at the top left corner of the park and walk at constant but different speeds. Betty walks in a clockwise direction and Ann walks in a counterclockwise direction. Points P,Q,R,S,T divide the bottom edge of the park into six segments of equal length. When Betty and Ann meet for the first time, they are between Q and R. Which of the following could be the ratio of Betty’s speed to Ann’s speed?
5:3 11:4 9:4 12:5 11:6
9:4
439457
106??4
What are the ? marks
1, 2
34, 55, 89, this is part of which sequence?
Fibonacci Sequence
In the six-digit number 1ABCDE, each letter represents a digit. Given that 1ABCDE × 3 = ABCDE1, the value of A + B + C + D + E is
26
There were 3 people and 5 caps, 2 white caps and 3 black caps, they were arranged in height order so the tallest could see the medium height and shortest and the medium height could see the shortest's cap. The people were asked to find what colour caps they had on their head, the tallest was not able to figure it out and even the medium height could not though knowing this, the shortest figured it out. How?
Explaination physically
32, 243, 1024, 3125 are all what type of numbers?
Powers of 5
Given 8 dimes (10 ¢ coins) and 3 quarters (25 ¢ coins), how many different amounts
of money can be created using one or more of the 11 coins?
27
No
107 98 82 57 21 - What is the next number?
-28
Four vertices of a quadrilateral are located at (7, 6), (−5, 1), (−2, −3), and (10, 2). The area of the quadrilateral in square units is
63
There are 10 prisoners and each of them have a cap either black or white, there are 5 black caps and 5 white caps. A warden asks the prisoners to Make a strategy and figure out what cap is on their head without looking at others caps. They then stand in a line and tell the warden the cooler of their caps. After making a strategy how many prisoners are saved and how.
Answer 9 at least - Working will be shown
What is the formula to get this number pattern
1:4, 2:19, 3:84, 4:259, 5:628
n to the power of 4 + 3
Ashley writes out the first 2017 positive integers. She then underlines any of the 2017 integers that is a multiple of 2, and then underlines any of the 2017 integers that is a multiple of 3, and then underlines any of the 2017 integers that is a multiple of 5. Finally, Ashley finds the sum of all the integers which have not been underlined. What is this sum?
542 708