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Let * be a binary operation, on the set of all non-zero real numbers, given by a*b = ab/5 for all a, b ∈ R - {0}. Find the value of x, given that 2 * (x * 5) = 10. |
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Answer» Given 2*(x *5) = 10 ⇒ 2*(x .5)/5 = 10 ⇒ 2* x = 10 ⇒ (2.x)/5 = 10 ⇒ x = (10 x 5)/5 ⇒ x = 25 |
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