A trout population grew from 4 in 1992 to 16. in 1993 and then to 64 in 1994. If it continued to grow exponentially, approximately how many trout were there in 19959
01:47:5
100
128
256
320

128

Explanation:

Each number is being multiplied by 4:

1992   1993    1994    1995

  4        16        64         ?

Multiply:

64 × 4 = 128

1992   1993    1994    1995

  4        16        64       128

So, the answer would be 128.

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