There are 5.5 billions bacteria. If 1 in 75 millions can do mutation how many bacteria was there possible can do mutation?

A 75
B 72
C 73
D 70

Correct Answer: 73

We know that  1 Billion = 1000 MillionSo that, 5.5Billion=(5.5*1000)=5500MillionNow, the number of mutated bacteria = 5500/75                                                                        =73
Bissoy MCQ

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