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If N=A*A*B*C .Then how many factors of N are there?

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3. Statement- some singer’s r rockers.
All rockers are Wrestlers.
conclusion -
1)some rockers are singers
2)some wrestlers are rockers
3)some singers are wrestlers
4)some singers are not wrestlers
Option
a) 1,2,3 follow
b) 1,2,4 follow
c) 2,3,4 follow
d) 1,3,4 follow
13. A Petri dish hosts a healthy colony of bacteria. Once a minute every bacterium divides into two. The colony was founded by a single cell at noon. At exactly 12.43(43 minutes later) the Petri dish was half full. At what time the dish will be full?