There are 345 red balloons and 335 yellow balloons. Amit mixes them together and divides them into groups of 8. How many groups of balloons are there?
(A) 55
(B) 77
(C) 85
(D) 75
There are 345 red balloons and 335 yellow balloons. Amit mixes them together and divides them into groups of 8. How many groups of balloons are there?
(A) 55
(B) 77
(C) 85
(D) 75