Q84 of 107 Page 104

One of the two numbers is twice the other. The sum of the numbers is 12. Find the numbers.

Let x be the one of the number. Then, the other number is twice the first one = 2x


According to the question,


x + 2x = 12


⇒ 3x = 12


⇒ [Divide both side by 3]


⇒ x = 4


Hence, the numbers are x = 4 and 2x = 2 × 4 = 8.


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