This question is based on the five, three-digit numbers given below: 674 621 435 376 215 (Note: All operations to be done from left to right.) If 3 is added to the first digit of every number, in how many numbers will the first digit be exactly divisible by the second digit?

Refer to the given series and answer the question that follows (counting to be done from left to right only): (Left) 6 6 8 6 7 4 5 9 9 1 7 6 8 1 4 5 4 7 1 4 1 1 4 3 5 4 3 (Right) How many such even numbers are there, each of which is immediately preceded by an odd number and also immediately followed by an even number?

Refer to the following series and answer the question (counting to be done from left to right only): (Left) 3 7 9 8 5 3 6 2 2 1 5 3 7 1 5 7 5 7 1 8 4 3 6 9 7 4 4 (Right) How many such odd digits are there, each of which is immediately preceded by an odd digit and also immediately followed by an odd digit?