Question

find out the wrong number.
225, 289, 338, 374, 397, 415, 424

Answer 1

Answer:

397

Step-by-step explanation:

The series is formed by addition of 8^2, 7^2, 6^2 ___ to the previous term.

Hence the wong number is 397.

Answer 2

Answer:

The answer would be 397

Step-by-step explanation:

The pattern of the series is adding 8² to 225 to get 289

289 + 7² = 338

338 + 6² = 374

but 374 + 23 = 397 and 397 + 18 = 415 doesnt add up.

415 + 3² = 424.

so the wrong number would be 397.

the correct number should be 399.

Hope it helps. Thank you.