Question 848652
0.50 younger than 10
0.05 are 10
0.10 older than 10 but younger than 12
70 students 12 or older
How many are 10 yrs old?
0.50+0.05+0.10=0.65=65%
70 are 35%
70/0.35=200 total
200*0.05=10 students ten yrs old