Ques 8 Maths & Number theory quiz

#1

Can you please explain this ques?

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#2

Hello @himanshugupta8 you can watch this video to understand this in better way:

#3

in the video also the number divisible by 3 is given by 1/3 * [Number in range]. I chose the option [N/6] but the answer shown is [N/6] +1

#4

i think that plus 1 is because of range .

#5

in the video that formulae is not coming out to be n/6 .
there is 2 as well.

#6

Let n=5 then acc to formula [n/6]+1, answer should be 1, but in [0,5] there is no such number which can be divisible by 6. Am I wrong?

#7

Hello @himanshugupta8 yes right .
i will discuss and get it correct .
you can try to resubmit after sometime.

#8

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