GATE Electronics and Communications (EC) 2014 Shift 2 Solved Paper

In the figure, M(f) is the Fourier transform of the message signal m(t) where A = 100 Hz and B = 40 Hz. Given v(t) = cos (2πf_ct) and w(t) = cos (2π(f_c + A)t), where f_c > A. The cutoff frequencies of both the filters are f_c.

The bandwidth of the signal at the output of the modulator (in Hz) is _______