Find out the wrong number in the series:455, 445, 465, 435, 485, 415,515,455
Answer & explanation
Correct answer: option 1
The above series is made up by combining two series i.e. 455, 465, 485, 515 and 445, 435, 415, 455 (455 is wrong)
| 455 | →(+10) | 465 | →(+20) | 485 | →(+30) | 515 |
| 445 | →(-10) | 435 | →(-20) | 415 | →(-30) | 455 |