JEE Math Practice Question
Out of 11 consecutive natural numbers if three numbers are selected at random (without repetition), then the probability that they are in A.P. with positive common difference, is :
- A.$${{10} \over {99}}$$
- B.$${{5} \over {33}}$$
- C.$${{15} \over {101}}$$
- D.$${{5} \over {101}}$$
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