Please provide explanation

Step-by-step explanation:
so the question says that we have to find no. of children
so now,
20/100 × 30 =
TAKE OUT UR ANSWER AND U WILL GET UR CORRECT ONE
Answer:
24
Step-by-step explanation:
30/100 = 0.3
0.3*20 = 6
30-6=24
P.S!!!
Don't blindly trust me, check before with others
And also hope it helped