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Questions (8)

ABCDE is a regular pentagon. FAD is an equilateral triangle, such that points F and E are on the same side of line AD. What is
1. 1 answer
2. 1,591 views
Given a 100 by 100 square grid, what is the most number of 1 by 51 rectangles that we can cut out of it?
1. 0 answers
2. 418 views
The difference of the cubes of two consecutive odd positive integers is 400 more than the sum of their squares. Find the sum of
1. 1 answer
2. 549 views
A number, greater than or equal to 2, is called product-perfect if it is equal to the product of all of its proper divisors. For
1. 1 answer
2. 512 views
How many 7 digit positive integers are there such that the product of the individual digits of each number is equal to 10000?
1. 2 answers
2. 909 views
ABCD is a parallelogram. E is a point on AB such that 234×AE=EB. Let DE intersect AC at F. What is the ratio AC:AF?
1. 0 answers
2. 387 views
ABC is an acute angle triangle with points D and E on BC and AC, respectively such that BE and AD are altitudes. AD and BE
1. 2 answers
2. 595 views
ABCD is a parallelogram. E is a point on AB such that 234×AE=EB. Let DE intersect AC at F. What is the ratio AC:AF?
1. 1 answer
2. 656 views

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