How many even numbers are there in the following series of numbers, each of which is immediately preceded by an odd number, but not immediately followed by an even number?
6 2 8 9 1 3 4 5 7 5 8 9 7 9 10 8 1 4 9 2 6
A2
B3
C4
D5
Answer:
B. 3
Read Explanation:
Here, we are looking for a group of numbers i.e. odd even odd. In the series it occurs thrice i.e. ‘1 4 9’, ‘3 4 5’, ‘5 8 9’.
Hence, the answer is 3.