The ratio between the invigilator and the examination candidate is 1:30.determine the number of invigilator for 215 examination candidate

Answer 1

To determine the number of invigilators for 215 examination candidates, we need to set up the ratio:

1:30 = x:215

Cross multiply to solve for x:

1 * 215 = 30 * x
215 = 30x

Divide both sides by 30 to solve for x:

215/30 = x
x = 7.17

Since the number of invigilators must be a whole number, we round up to the nearest whole number:

Therefore, there would be 8 invigilators for 215 examination candidates.