75 tickets have been sold so far.
step-by-step explanation:
in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.
now let's assume the total number of tickets sold be x.
then 60% of x = 45
β
β x(.6) = 45
by dividing with .6 on both the sides of the equation
β x = 75
therefore 75 tickets have been sold so far.