Question
Download Solution PDFদুটি তরল A এবং B একটি বালতিতে 7 : 5 অনুপাতে মেশানো হয়। যদি 9 লিটার মিশ্রণটি 10 লিটার তরল B দ্বারা প্রতিস্থাপিত হয়, তবে উভয় তরলের অনুপাত 7 : 9 হবে। বালতিতে তরল A কত লিটার ছিল ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
A এবং B-এর অনুপাত = 7 : 5
গণনা:
প্রশ্নানুযায়ী,
(7x - 9 x 7/12)/(5x - 9 x 5/12 + 10) = 7/9
⇒ (28x - 21)/(20x + 25) = 7/9
⇒ 252x - 189 = 140x + 175
⇒ 122x = 364
⇒ x = 3.25
⇒ 7x = 22.75
∴ বালতিতে তরল A 22.75 লিটার ছিল।
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