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24 Αυγ 2016 · Answer To 1 + 4 = 5 Puzzle. A mathematician might take a literal approach. 1 + 4 = 5 2 + 5 = 12 3 + 6 = 21 8 + 11 = ? The first equation is true, the second and third are false, and the answer to the equation should be 19. But riddles like this are not about literally interpreting mathematical symbols.
14 Ιαν 2021 · If 1+4 =5 and 2+5 =12 and 3+6 = 21, then what is 8+11? In each equation, the first two numbers are multiplied and the product is added to the first number. ...more.
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Online math solver with free step by step solutions to algebra, calculus, and other math problems. Get help on the web or with our math app.
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x^2: x^{\msquare} \log_{\msquare} \sqrt{\square} \nthroot[\msquare]{\square} \le \ge \frac{\msquare}{\msquare} \cdot \div: x^{\circ} \pi \left(\square\right)^{'} \frac{d}{dx} \frac{\partial}{\partial x} \int \int_{\msquare}^{\msquare} \lim \sum \infty \theta (f\:\circ\:g) f(x)
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