Problem Solving Skills for Mathcounts Competitions

Book Store => Twenty Mock Mathcounts Sprint Round Practices => Bookstore => Twenty Mock Sprint Tests Solutions => Topic started by: yongcheng3315 on February 02, 2014, 08:34:54 AM

Title: Test 11 solutions
Post by: yongcheng3315 on February 02, 2014, 08:34:54 AM

Test 11 solutions

Title: Re: Test 11 solutions
Post by: ss5188 on February 05, 2014, 08:06:17 PM

I think you attached the wrong file. It's for test 10, not 11. Thanks.

Title: Re: Test 11 solutions
Post by: ss5188 on April 01, 2014, 07:46:19 PM

There are quite some typos in the test 11 solutions.
Question 2: The equation doesn't hold.
Question 3: 5/5 should be 5/4.
Question 8: The equation doesn't hold.
Question 14: Case 2: 3C1 + 3C1 + 3C1 is not equal to 3.
Question 23: Some of the factorizations are not correct.
question 26: 2 is skipped in most branches for the case 6.
Question 30: It should be 55/11=5, not 55-11 =5.

Title: Re: Test 11 solutions
Post by: yongcheng3315 on April 02, 2014, 10:07:06 AM

Thanks a lot. All corrections made.