160 million years ago corresponds to the late Jurassic period, which is around 158 million years before the present. To express this in terms of "before Christ" (B.C.), you would say it is approximately 160,000,000 B.C. However, it's important to note that the concept of B.C. is primarily used for historical events rather than geological time scales, which are measured in millions of years.
A
I just did the test, is B, it can't be disproved.
A is 35 years old, B is 15 years old.
1917
Remembering that there is no year zero, it is 2412 years ago, from 2013.
As of 2016, the year 18,000 BC was 20,016 years ago.
Lyndon B. Johnson
B. Hollowell has written: 'Memories of Denton 50 years ago'
B. Coal
These years are 2260 years apart. (recall that there is no year zero. )
Dog sledding, Cross-country skiing Both A and B
2a + 2b = 160 But b = a + 40 so 2a + 2(a + 40) = 160 ie 2a + 2a + 80 = 160 or 4a = 80 ie a = 20 Then b = a + 40 gives b = 20 + 40 = 60 Solution: a = 20, b = 60