Four children average is 15.25 so ages must add to 61
61-12-16=33
11 and 22 go into 33
Youngest is 11
C=pi(d)
So d=7ft
Then pi(7ft)=21.98
1st Bagel; $0.79. 2nd Bagel; $0.67. 3rd Bagel; $0.70. 4th Bagel; $0.75. So B would be the correct answer, given 67¢ is cheaper ;)))))))
Add the minutes it takes per book:-
1.2 + 0.8 = 2
You spend 2 minutes reading!