Find the odd number in the series: 3, 6, 9, 12, 15, 18, 21, 25.

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Question: Find the odd number in the series: 3, 6, 9, 12, 15, 18, 21, 25.

Options:

Correct Answer: 25

Solution:

All numbers except 25 are multiples of 3. 25 is the odd one out.

Find the odd number in the series: 3, 6, 9, 12, 15, 18, 21, 25.

Find the odd number in the series: 3, 6, 9, 12, 15, 18, 21, 25.

Step 1: Look at the series of numbers: 3, 6, 9, 12, 15, 18, 21, 25.
Step 2: Identify the pattern in the series. Notice that all the numbers except one are multiples of 3.
Step 3: Check each number to see if it can be divided by 3 without a remainder.
Step 4: 3 divided by 3 equals 1 (no remainder).
Step 5: 6 divided by 3 equals 2 (no remainder).
Step 6: 9 divided by 3 equals 3 (no remainder).
Step 7: 12 divided by 3 equals 4 (no remainder).
Step 8: 15 divided by 3 equals 5 (no remainder).
Step 9: 18 divided by 3 equals 6 (no remainder).
Step 10: 21 divided by 3 equals 7 (no remainder).
Step 11: 25 divided by 3 equals 8 with a remainder of 1.
Step 12: Since 25 is the only number that is not a multiple of 3, it is the odd one out.

Multiples of 3 – The series consists of numbers that are primarily multiples of 3, except for one number.