question: A whirligig spins at five times the speed of a thingamabob. A whatchamacallit spins eleven times faster than a thingamabob. A whatchamacallit spins at 121 meters per second. How fast does a whirligig spin?
answer: A thingamabob spins 1/11 as fast as a whatchamacallit, so it spins at 121 / 11 = 11 meters per second.
  A whirligig spins five times faster than a thingamabob, so it spins at 11 * 5 = <<11*5=55>>55 meters per second.
  #### 55