Solution: Because Team B has adopted new technology, both teams need to work for X days at the same time to complete this task. Then the equation is:

( 1/ 10+ 1/20)* 3+[ 1/ 10+( 1/20)*( 1+25%)]* X = 1

The equivalent relationship of this equation is:

Workload completed before+workload after adopting new technology = total workload

Where (110+1/20) * 3 is the work done before.

[110+(1/20) * (1+25%)] * x is the workload after adopting new technology.

1 is the total workload.

Find X=44/ 13.