Find the number whose double is 45 greater than its half.

Question

KnowledgeBoat · Accepted Answer

Let the number be x. Double of the number is 45 greater than its half. Since L.C.M. of denominators 1 and 2 = 2, multiply each term with 2 to get: ⇒ 2x 2 \- x = 90 ⇒ 4x \- x = 90 ⇒ 3x = 90 ⇒ x = ⇒ x = 30 Hence, the number is 30.

Mathematics

Find the number whose double is 45 greater than its half.

Linear Eqns One Variable

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