19 cards numbered 1,2,3, ........,19 is put in a box and mixed thoroughly. One person draws one card from the box, then the probability that the number on the card is divisible by 3 is

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919

619

719

519

answer is B.

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Detailed Solution

Given that there is a total of 19 numbers.
Numbers divisible by 3 between 1 to 19 are 3, 6, 9, 12, 15, 18.
So, number of favorable outcomes = 6.
Probability of getting a number which is divisible by 3 from 1 to 19

= number of favorable outcomes total numbers

= 619

Required probability is

619

.
Therefore, option 2 is correct.

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