The given table shows the number of children who wear and do not wear glasses in 3 different classes.
How many more children wear glasses in 3A and 3 B than in 3C ?
(A) 5
(B) 10
(C) 15
(D) 20
The given table shows the number of children who wear and do not wear glasses in 3 different classes.
How many more children wear glasses in 3A and 3 B than in 3C ?
(A) 5
(B) 10
(C) 15
(D) 20