TS EAMCET · Maths · Probability
If a proper divisor of the integer is selected at random, then the probability that it is an odd number is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
2520=252×10 =22×32×71×10 =23×32×51×71 Number of proper divisors =3+12+11+11+1-2 =48-2=46 Number of odd divisors =12+11+11+1, as power of 2 should be zero here =12 ∙ Subtract 1 here as in these 12 divisors, 1 is also counted which is not…
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