How many numbers from 11 to 100 which are exactly divisible by 7 but not by 3?
How many numbers from 1 to 100, which are exactly divisible by 15 but not by 5?
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If the following series is written in reverse order, which number will be 4th to the right of the 7th number from the left?
7, 3, 9, 7, 1, 3, 8, 4, 6, 2, 1, 8, 5, 11, 13
In the given sequence, how many such even numbers are there which are exactly divisible by its immediate preceding number, but not exactly divisible by its immediate following number?
3 8 4 1 5 7 2 8 3 4 8 9 3 9 4 2 1 5 8 2