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Question
The difference between the number of numbers from 2 to 100 which are not divisible by any other number except 1 and itself and the numbers which are divisible by at least one more number along with one and itself.
Options
25
50
49
None of these
MCQ
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Solution
None of these
Explanation:
Prime no. between = 2 and 100
= 3, 5, 7, ............
There sum = 3 + 5 + 7 .........
Sum of composite no. = 4 + 6 + 8 + ........ 99
Which will be more than all the given options anyhow.
∴ The answer is None of these
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Number System (Entrance Exam)
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