On the Sunday before New Year in Kursk there was an interesting show. What was it like last year? Choose the correct translation.

R общ. = 20 Ом
R1 = 52 Ом

1/Rобщ. = 1/R1 + 1/R2 (формула суммы проводимостей)
1/R2 = 1/Rобщ. - 1/R1 = 1/20 - 1/52 = 52/20*52 - 20/20*52 = 32/1040
R2 = 1040/32 = 32,5 Ом.