Hello, I will help you!
Notice that in this pattern, sum of first 2 digits from the right and sum of first 2 digits from left is equal to the digit just above it.
For example - First 2 digits on left side are 4 and 2 at the base, and their sum is equal to 6 which is just above it. Similarly, first 2 digits from right is equal to 7 which is just above 6 and 1. By continuing the same pattern, sum of 62+58 is equal to 120 and the answer should be 120.
Please approve this answer if you got this!