Maths-
General
Easy
Question
Out of 20 consecutive natural numbers two are chosen at random. The probability that their sum is odd is
- 1/20
- 10/19
- 19/20
- 9/19
The correct answer is: 10/19
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An investigator interviewed 100 students to determine the performance of three drinks milk, coffee and tea. The investigator reported that 10 students take all three drinks milk, coffee and tea; 20 students take milk and coffee, 30 students take coffee and tea, 25 students take mile and tea, 12 students take milk only, 5 students take coffee only and 8 students take tea only. Then, the number of students who did not take any of the three drinks, is
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