In a sequence of 12 consecutive odd numbers, the sum of

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In a sequence of 12 consecutive odd numbers, the sum of the first 5 numbers is 425. What is the sum of the last 5 numbers in the sequence?

1. 245
2. 557
3. 495
4. 425

Correct Option: C

8^th observation i s 7 × 2 = 14 more than 1^st observation
9^th observation is 14 more than 2^nd observation
10^th observation is 14 more than 3^rd observation
11^th observation is 14 more than 4^th observation
12^th observation is 14 more than 5^th observation
Total 14 × 5 =70
Sum of the first five numbers = 425
Sum of last five numbers = 495