In a box, there are 25 blue marbles, 18 red marbles and 27 yellow marbles. How many marbles are there in the box altogether?
(a) 50
(b) 60
(c) 70
(d) 80
answer is 70
In a box, there are 25 blue marbles, 18 red marbles and 27 yellow marbles. How many marbles are there in the box altogether?
(a) 50
(b) 60
(c) 70
(d) 80