Question

1) In 2001, there were about 62.5 thousand golden retrievers registered in the United States. In 2002, the number was 56.1 thousand. If the number of golden retrievers continues to decrease at the same rate, how many golden retrievers are there in the year 2010?

(A) 64 thousand
(B) 12,864
(C) 4.9 thousand
(D) 132.9 thousand

Answer 1

62500 - 56100 = 6400 - number of retrivers u lost per year.
Answer need to be lower then 62,5 and 56,1 thousand so no (A) and not (D)
Number is reduce by 6400 and starting amount was 62500, 2 zeros and end must stay there in answer so not (B)
Then it must be (C)

Or u can calculate 62500 - 9*6400 = 4900