Answer:
the ratio of 6:5 can be expressed as 6/5
 
        
             
        
        
        

Let,
- Number of boys be 3x
- Number of girls be 2x
- Then, Total number of students = 3x + 2x = 5x
It is given that,
➙ Number of girls = 420
Then,
➙ 2x = 420
➙ x = 420/2 = 210 
No. of boys = 3x = 630
Then,
➙ Number of students = 5x
➙ Number of students = 5(210)
➙ Number of students = 1050
<u>━━━━━━━━━━━━━━━━━━━━</u>
 
        
             
        
        
        


<h2 />
Step-by-step explanation:

- <u>dividing</u><u> the</u><u> </u><u>equivalent</u><u> </u><u>to </u><u>multiplying</u><u> </u><u>by </u><u>the </u><u>reciprocal</u>
<u> </u>
</u>
- <u>reduce </u><u>the </u><u>numbers</u><u> </u><u>with</u><u> the</u><u> </u><u>gr</u><u>e</u><u>atest </u><u>common </u><u>factor</u><u> </u><u>5</u>
<u> </u>
</u>
<h2><u>hope</u><u> it</u><u> helps</u></h2>