Std 10th Gujarati

8th , 9th and 10th pair of ribs

If coefficient of 9th, 10th and 11th terms of (1+x)^(n) are in A.P., then the value of n can be

Assertion:The 8th , 9th and 10th pairs of ribs are false ribs Reason:They are attached to the lumbar vertebrae dorsally