Subject
Bank Exam
Topic
City Bank Ltd. - Probationary Officer - 2016
If y = (3x - 6) / x, than for what values of x, y will be positive ?
If y = (3x - 6) / x, than for what values of x, y will be positive ?
ক)
x > 2 or x < 0খ)
x > 0গ)
-2 < x < 2ঘ)
NoneExplanation
Solution: অনুবাদঃ যদি y = (3x - 6) / x হয় তখন x এর কোন মানের জন্য y এর মান ধনাত্মক হবে ? y > 0 => => => ....................(i) এখন, (i) ধনাত্মক হবে বলে দ্বিতীয় x - 2 > 0 x > 2 ....................................(ii) অথবা, (i) নং এর লব ও হর উভয়ই ঋণাত্মক হবে । x < 0 .....................................(iii) তাই (ii) ও (iii) হতে x > 2 or, x < 0 - যা অপশন a) তে আছে ।Related questions
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