Consider the transfer functions of the following systems

System 1: \(TF = \dfrac{{10}}{{\left( {s + a} \right)}}\)

System 2: \(TF = \dfrac{{10}}{{\left( {s + b} \right)}}\)

1. The ratio of the bandwidth of system 1 to the bandwidth of system 2 is 0.4

2. Sum of the bandwidths of system 1 and system 2 is 14 rad/sec

Then a + b =