A virus sample multiplies itself by becoming 16 time itself every hour. But due to anti-agent present in the system, only half of them survive every hour. If we start with x number of virus and after the 8 hours there are 2^40 viruses, what is the value of x?
A. 2^16
B. 2^18
C. 2^21
D. 2^23
E. 2^25
OA A
Source: e-GMAT
A virus sample multiplies itself by becoming 16 time itself every hour. But due to anti-agent present in the system,
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