Saturday, December 24, 2011
Saturday, December 10, 2011
How Many Students
In a class, there are 9 students with green eyes, 11 students brunette, and 3 students who are neither green-eyed nor brunette. If 6 students are green-eyed brunettes, how many students are in the class?
Scroll down to see the answer!
Answer: 17
Solution 1:
9 (Green Eyes) + 11 (Brunettes) + 3 (neither) – 6 (Green-eyed Brunettes) = 17
Solution 2:
9 – 6 = 3 (Green Eyes but not Brunette)
11 – 6 = 5 (Brunette but not Green Eyes)
3 (neither)
6 (Green-eyed Brunettes)
3 + 5 + 3 + 6 = 17
Scroll down to see the answer!
Answer: 17
Solution 1:
9 (Green Eyes) + 11 (Brunettes) + 3 (neither) – 6 (Green-eyed Brunettes) = 17
Solution 2:
9 – 6 = 3 (Green Eyes but not Brunette)
11 – 6 = 5 (Brunette but not Green Eyes)
3 (neither)
6 (Green-eyed Brunettes)
3 + 5 + 3 + 6 = 17
A Quick Response
In a second or two, try to answer this question:
What number multiplied by itself is equal to: 7×7×4?
Scroll down to see the answer!
Answer: 14
7×7×4 = 7×4×7 = 7×2×2×7 = (7×2) × (7×2) = 14 × 14
What number multiplied by itself is equal to: 7×7×4?
Scroll down to see the answer!
Answer: 14
7×7×4 = 7×4×7 = 7×2×2×7 = (7×2) × (7×2) = 14 × 14
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