3/4 of the total students = 1230...
3/4x = 1230
x = 1230 * 4/3
x = 4920/3
x = 1640 <=== total students
<h2>
Explanation:</h2>
Use BODMAS and algebra to arrive at the values of P = 5/2, q = -25/4 and r = -9/2.
Then substitute the values of p and q into p+2q to get -10
Answer:-9
Step-by-step explanation: