Between 7 O'clock and 8 O'clock, when the times at which the minutes and hour hands be at 30° with each other are 7 hours t1, min. and 7 hours t2 min., then t1 + t2 =
1
\(\frac{{360}}{11} \)
2
\(\frac{{440}}{11} \)
3
\(\frac{{840}}{11} \)
4
\(\frac{{480}}{11} \)