Subject
Quantitative Aptitude
Topic
Number
If 4 is added with one-fifth of a number, 10 is deducted from one-fourth of that number. What is the number?
If 4 is added with one-fifth of a number, 10 is deducted from one-fourth of that number. What is the number?
ক)
250খ)
270গ)
280ঘ)
200Explanation
ধরি, সংখ্যাটি হল x। এক-পঞ্চমাংশের সাথে 4 যোগ করলে = 4 + x/5 এক-চতুর্থাংশ থেকে 10 বিয়োগ করলে = x/4 - 10 প্রশ্ন অনুযায়ী, 4 + x/5 = x/4 - 10 ⇒ 4 + x/5 = x/4 - 10 ⇒ 4 + 10 = x/4 - x/5 ⇒ 14 = x/4 - x/5 ⇒ 14 = (5x - 4x)/20 ⇒ 14 = x/20 ⇒ 14 × 20 = x ⇒ 280 = xRelated questions
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