Grade 11 Math Brain Teasers
Engage your mind with challenging brain teasers designed for Grade 11 math students, focusing on logic, patterns, and problem-solving skills.
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Grade 11 Math Brain Teasers
Name:
Date:
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Read each brain teaser carefully and solve it using your critical thinking and mathematical skills. Show your work where applicable.
1. A man has 53 socks in his drawer: 21 identical blue, 15 identical black and 17 identical red. The lights are out and he is pulling socks randomly. What is the minimum number of socks he must pull out to be sure he has a pair of black socks?
2. What is the next number in the following sequence: 1, 1, 2, 3, 5, 8, 13, .
3. If a clock takes 7 seconds to strike 7, how long will it take to strike 10?
9 seconds
10 seconds
10.5 seconds
11 seconds
4. I am an odd number. Take away one letter and I become even. What number am I?
5. True or False: If you multiply all the numbers on a telephone dial, the product is 362,880.
True
False