TwentyFour

4 Questions
17 Answers

0

513

1

+62

Basic number theory question

How many integers from 1 to 1000 are there such that is divisible by 1000?

Looks like something to do with orders, I tried seperating the modulos but got stuck :<

TwentyFour Sep 15, 2020

0

2290

1

+62

Triangles ABC and DFG are given. Find the lengths of all other sides of these triangles if:

Triangles ABC and DFG are given. Find the lengths of all other sides of these triangles if:
Chapter Reference
b
∠A≅∠D, AB·DG=AC·DF, AC=7 cm, BC=15 cm, FG=20 cm, and DF-AB=3 cm read more ..

TwentyFour Feb 2, 2019

+1

916

10

+62

Complementary Counting Challenge:

There is an n by n square with n^2 unit squares. How many ways can we put numbers from 1 to n^2 on the grid such that the numbers from left to right and top to bottom go from least to greatest?

What if the grid is a n by n by n Cube? read more ..

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TwentyFour Jan 16, 2019

+2

897

6

+62

A bit stuck.

Find the least positive integer such that when is written in base 143, its two right-most digits in base 143 are 01.

Unsure of how to approach. Hints?

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TwentyFour Jan 15, 2019