MOEMS | 2022~2023 | Contest 4 | Division E | Answers & Solutions

Math Olympiad is a great way to challenge yourself in terms of thinking both critically and flexibility. This is something that you can compete in by yourself or register to be part of your school's team. In this video, Kalie will be sharing the answers and solutions to the Division E MOEMS contest questions for 2022~2023.

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4A Find the following sum:

4B Jimmy, Kimmy, and Timmy are each thinking of a prime number. The product of Jimmy's and Kimmy's primes is 34. Kimmy's and Timmy's primes multiply to 85. What is the sum of their three prime numbers?

4C What is 1/2 of 2/3 of 3/4 of 2400?

4D Part of a 10 × 10 grid is shown in the following diagram. If the pattern shown is continued for the remaining grid, N percent of the entire figure will be shaded. Find the value of the whole number N. [Do not include the percent sign.]

4E Use the following 3 equations to determine the value of the last expression.
🟥+🔺+🔴+🔴 = 15
🟥+🔺+🔺+🔴 = 19
🟥+🟥+🔺+🔴 = 14
What is the value of 🔺+🔺+🔺+🟥+🟥?