The number of student in 3 classes is in the ratio 2:3:4 if 12 students are increased in each class this ratio changes to 8:11:14. The total number of students in the three classes in the beginning in the three classes in the beginning was:
Created: 2 years ago |
Updated: 1 year ago
best des
মনেকরি,
ছাত্র - ছাত্রী সংখ্যা যথাক্রমে 2x, 3x, 4x
প্রশ্নমতে,
2x + 12: 3x + 12:4x + 12 = 8: 11:14
⇒ 22x + 132 = 24x + 96
⇒ - 2x = - 36
⇒ x = 18
.: মোট ছাত্র - ছাত্রী = 2x + 3x + 4x
= 9x
= 9 x 18 = 162 জন
ছাত্র - ছাত্রী সংখ্যা যথাক্রমে 2x, 3x, 4x
প্রশ্নমতে,
2x + 12: 3x + 12:4x + 12 = 8: 11:14
⇒ 22x + 132 = 24x + 96
⇒ - 2x = - 36
⇒ x = 18
.: মোট ছাত্র - ছাত্রী = 2x + 3x + 4x
= 9x
= 9 x 18 = 162 জন
Md Azizur Rahman
Founder of Satt
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