Question

Two numbers are selected at random from set of the first 100 natural numbers. The probability that the product obtained is divisible by 3 is..

Answer 1

I am not good at probability .. :(

Answer 2

No problem..@Miyuru You can learn it...Its interesting

Answer 3

Hmm yeah @AbhimanyuPudi I too posted one see whether u can..:D

Answer 4

@JakeV8

Answer 5

@hartnn

Answer 6

@hero @experimentX @TuringTest @asnaseer @Chlorophyll

Answer 7

I am also bad a probability.
@Zarkon and @satellite73 are probability gurus.

Answer 8

@Algebraic! @ganeshie8

Answer 9

Fine..never mind @TuringTest

Answer 10

for a number to be divisible by 3, AT LEAST ONE of the number has to be divisible of three.

Answer 11

Yes...

Answer 12

Are the numbers distinct?

Answer 13

there would be 33 numbers ...
so the numbers that is not divisible by 3 is ... 67
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find the probability that two numbers are not divisible by 3 ... subtract from 1

Answer 14

Yes ofcourse distinct @MrMoose

Answer 15

You mean 1 - (67 C 3) / (100 C 2) ? @experimentX

Answer 16

*2...in the numerator..not 3