Answer:
39
Step-by-step explanation:
3,7,11,.... 10th term
We notice that the difference between the terms is 4.
i.e. 3, 3+4,3+4+4 , .....until 10th
So 3+4*1 for 2nd term, 3+4*2 for 3rd term and it continues
we can develop
3+4(n-1) where n = term's serial number
For 10th term
3+4(10-1) = 3+4(9) = 3+36 = 39
