In a certain class, 1/4 of the number of… | Answer

Subject

Bank Exam

Topic

Jamuna Bank Ltd. - Probationary Officer - 2017

In a certain class, 1/4 of the number of girls is equal to 1/6 of the total number of students. What is the ratio of the number of boys to the number of girls in the class ?
Reading

ক)

1 : 4

খ)

2 : 3

গ)

1 : 2

ঘ)

None

Explanation

Solution: প্রশ্নে বলা হচ্ছে, কোন শ্রেণীতে ছাত্রীদের 1/4 অংশ মোট ছাত্র-ছাত্রীর 1/6 অংশের সমান । ছাত্র-ছাত্রীর অনুপাত কত ? ধরি, ঐ শ্রেণিতে ছাত্র সংখ্যা x জন এবং ছাত্রী সংখ্যা y জন । প্রশ্নমতে, (x + y) এর 1/6 = y এর 1/4 =>

\frac{{x + y}}{6} = \frac{y}{4}

\frac{{x + y}}{3} = \frac{y}{2}

=> 2x + 2y = 3y => 2x = 3y - 2y => 2x = y =>

\frac{x}{y} = \frac{1}{2}

x : y = 1 : 2 অর্থাৎ ছাত্র-ছাত্রীর অনুপাত 1:2

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\times

\times

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In a certain class, 1/4 of the number of girls is equal to 1/6 of the total number of students. What is the ratio of the number of boys to the number of girls in the class ?Reading

In a certain class, 1/4 of the number of girls is equal to 1/6 of the total number of students. What is the ratio of the number of boys to the number of girls in the class ?

Explanation

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In a certain class, 1/4 of the number of girls is equal to 1/6 of the total number of students. What is the ratio of the number of boys to the number of girls in the class ?
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