SASMO 2015 Secondary 1 (Grade 7) Contest Question 15

70 cakes are packed in two different box sizes. The small box holds 6 cakes and
the big box holds 8 cakes. If more than 10 boxes are used and all the boxes are
fully packed, how many small boxes are used?
AD:
B. 5
C7
Dd, 9
Bead