GG.28 Sum of three integers is 1000

There are three integers A, B and C which are A + B + C = 1000.
B/A is calculated to the first decimal place and it is 7 when rounding off the first decimal place of the quotient.
Moreover, when C is divided by B, the quotient is 2 and remainder is 16.

Answer the following questions.

(1) When B/A is calculated, it can be divided at the first decimal place exactly and the quotient is 6.5.
In this case, find A, B and C, respectively.

(2) In other than (1), find all the numbers considered as a combination of A, B and C.











Answer
(1) (A,B,C) = (48, 312, 640)
(2) (A,B,C) = (42, 314, 644) = (45, 313, 642)