Subject
Bank Exam
Topic
City Bank Ltd. - Probationary Officer - 2016
In what ratio should a 20% methyl alcohol solution be mixed with a 50% methyl alcohol solution so that the resultant solution has 40% methyl alcohol in it?
In what ratio should a 20% methyl alcohol solution be mixed with a 50% methyl alcohol solution so that the resultant solution has 40% methyl alcohol in it?
ক)
1:2খ)
2:1গ)
1:3ঘ)
3:1Explanation
অনুবাদঃ 20% এলকোহলে কি অনুপাতে 50% এলকোহল মিশালে 40% এলকোহলে মিশ্রণ পাওয়া যাবে । যদি 20% এলকোহলে থাকলে = x এবং 50% এলকোহলে থাকলে = y হয় তবে প্রশ্নমতে, 20% of x + 50% of y = 40% of (x + y) => 10% of (2x + 5y) = 40% of (x + y) => 2x + 5y = 4(x + y) => 5y - 4y = 4x - 2x => y = 2x => x/y = 1/2 x : y = 1 : 2.Related questions
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