question: Brandon's iPhone is four times as old as Ben's iPhone. Ben's iPhone is two times older than Suzy's iPhone. If Suzy’s iPhone is 1 year old, how old is Brandon’s iPhone?
answer: Ben’s iPhone is 1*2 = <<1*2=2>>2 years old.
  Brandon’s iPhone is 4*2 = <<4*2=8>>8 years old.
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