Number Test
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11 How many odd numbers are there in the sequence which are immediately preceded and also immediately followed by an even number ?
12 In the following series, how many such odd numbers are there which are divisible by 3 or 5. then followed by odd numbers and then also followed by even numbers ? 12, 19, 21, 3, 25, 18, 35, 20, 22, 21, 45. 46, 47, 48, 9, 50, 52, 54, 55, 56
13 How many 5's are there in the following sequence which are immediately followed by 3 but not immediately preceded by 7 ? 8953253855687335775365335738
14 In the following number 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 ? 38415728348939421582
15 Thirty six vehicles are parked in a parking lot in a single row. After the first car, there is one scooter. After the second car, there are two scooters. After the third car, there are three scooters and so on. Work out the number of scooters in the second half of the row.
16 How many 8's are there in the following number series whifch are cxactly divisible by its immediately preceding and also divisible by immediately succeeding numbers ? 824517284842282698454832843183
17 In the following list of numerals, how many 2's are followed by l's but not preceded by 4 ? 421214211244412212144214212124142124146
18 Which is the third number to the left of the number which is exactly in the middle of the following sequence of numbers ? 123456789246897531987654321
