 
 <prompt> ```If dem get 20 surfers for Santa Monica, calculate di total number of surfers wey dey for di two beaches as dem get double di number for Malibu beach.``` <response>: If 20 surfers dey Santa Monica, Malibu beach get double pass the number of surfers wey dey Santa Monica wey be 2*20 = 40 surfers.
Altogether, the two beaches get total of 40+20 = 60 surfers.

The final answer: 60. 