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Ex 2.2, 12 - Chapter 2 Class 8 Linear Equations in One Variable
Last updated at June 21, 2018 by Teachoo
Transcript
Ex 2.2, 12 Fifteen years from now Ravi’s age will be four times his present age. What is Ravi’s present age?Let Ravi’s present age be x years. Fifteen years from now, Ravi’s age will be (x + 15) years Given, Fifteen years from now Ravi’s age = 4 × Ravi’s present age x + 15 = 4x 4x = x + 15 4x − x = 15 3x = 15 x = 15/3 x = 5 ∴ Present age of Ravi = x = 5 years
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