The virus count in a culture decreases at the rate of 5% per hour due to a medicine. If the virus count in the culture at 11.00 a.m. was 2.3 × 107, find the virus count at 1.00 p.m. on the same day.
1
2.076 × 107
2
2.415 × 107
3
2.143 × 107
4
2.54 × 107