Question

Please answer quick! please, please, please!

The sum of 2/3 of the number of students in Class 5A and 1/4 of the number of students in Class 5B is 34. There are 76 students altogether in both classes. How many students are there in the Class 5A??
(Don't give stupid answers!)

Answer 1

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Say,
No. of students in Class 5A as x
and No. of students in Class 5B as y


Given,
x+y = 76 ------[1]


Also given,
$\frac{2}{3}x + \frac{1}{4}y = 34$ ------[2]


Do 4×[2]

=> $\frac{8}{3}x + y = 136$ -------[3]

Do [3]-[1]

=> $(\frac{8}{3}x-x)+(y-y) = 136-76$

=> $\frac{8}{3}x-x = 60$

=>$\frac{5x}{3} = 60$

=> $5x = 180$

=> $x = 36$

Substitute in [1]
=> 36 + y =76
=> y = 76-36 = 40

Therefore
No. of students in Class 5A = 36 ✓✓✓✓
& No. of students in Class 5B = 40

✓✓✓

$\huge\boxed{\texttt{\fcolorbox{red}{aqua}{Keep\: it\: Mello}}}$

✌

Answer 2

Hope u may understand the writing.

Hope this helps,.. ^_^