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(9) Mr Lee is 56 years old. His nephew. Sam, is 4 years old. In how many years' time will Mr Lee be 5 times as old as his nephe

Ask by Cross Edwards. in Singapore
Jan 24,2025

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In 9 years, Mr. Lee will be five times as old as his nephew Sam.

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In x years, Mr. Lee's age will be 56 + x, and Sam's age will be 4 + x. We want to find when Mr. Lee's age equals 5 times Sam's age, leading us to the equation: 56 + x = 5(4 + x). Solving that gives us x = 12. So, in 12 years, Mr. Lee will be 68 and Sam will be 16, and indeed, 68 is 5 times 16! Calculating age relationships is a classic example of a linear equation problem. These kinds of puzzles often appear in brain teasers, math competitions, or even everyday scenarios, like determining the best time to pass family stories down through generations! So keep this in mind: age problems often rely on simple arithmetic but can yield delightful insights into family dynamics!

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